Statics and Torque1. The figure shows a pair of forceps used to hold a thin plastic rod firmly. If thethumb and finger each squeeze with a force of Fr= FF= 11.0 M, what force dothe forceps jaws exert on the plastic rod?JawsRodFT8.50 cm2.70 cm2. A 75-kg adult sits at one end of a 9.0-m-long board. His 25-kg child sits on theother end. (a) Where should the pivot be placed so that the board is balanced,ignoring the board's mass? (b) Find the pivot point if the board is uniform and hasa mass of 15 kg.3. Calculate FA and Fg for the beam shown below. The downward forces representthe weights of machinery on the beam. Assume the beam is uniform and has amass of 280 kg.FA 4300 N3100 N 2200 N F4.0 m-3.0 m2.0 m1.0 m4. Three children are trying to balance on a seesaw, which includes a fulcrum rockacting as a pivot at the center, and a very light board 3.2 m long. Two playmatesare already on either end. Boy A has a mass of 45 kg, and boy B a mass of 35kg. Where should girl c, whose mass is 25 kg, place herself so as to balance theseesaw?m 35 kgm= 45 kgm 25 kg

Given, Force=Ft=Ff=11m According to our guideline we have to do the 1st question only.Please upload…

1. The figure shows a pair of forceps used to hold a thin plastic rod firmly. If the thumb and finger each squeeze with a force of Fr= FF= 11.0 M, what force do the forceps jaws exert on the plastic rod? Jaws Rod 8.50 cm 2.70 cm

1. The figure shows a pair of forceps used to hold a thin plastic rod firmly. If the thumb and finger each squeeze with a force of Fr= FF= 11.0 M, what force do the forceps jaws exert on the plastic rod? Jaws Rod 8.50 cm 2.70 cm

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 70AP: Measuring coefficients of friction A coin is placed near one edge of a book lying on a table, and...

See similar textbooks

Related questions

Q: Magnetic Field of a Current Loop: A current-carrying loop of wire lies flat on a horizontal…

A: Here we can use right hand rule for finding the direction of field

Q: If the angle of inclination from where we release the glider increases from 0=1 to 0=7°, which of…

A: In this question we have to answer what happens when we increase the angle inclination while…

Q: 4. Consider a spider hanging from a line of silk attached to the ceiling? What type of load is the…

Q: Given a spacecraft velocity of of 4.36 km/s, what is the delta v in km/s for a change in inclination…

A: Given, Velocity=4.36km/s Angle=13.6 degree

Q: Two resistors of 2 Ω and 4 Ω are placed in series with a 12- V battery. 1. Which of the…

Q: About 32% of the body of a person floating in the Dead Sea will be above the water line. Assuming…

Q: 04/ 2. Suppose that motion studies of a runner show that the maximum speed he can maintain for a…

Q: itself, the 2500-kg pickup truck executes a 0-100 km/h acceleration run in 10 s along a level road.…

A: the 2500-kg pickup truck executes a 0-100 km/h acceleration run in 10 s along a level road. If the…

Q: An iron casting containing a number of cavities weighs 5.20E+3 N in air and 4.10E+3 N in water. What…

Q: Many of our cabled devices use light in optical fibers to send information across long distances. If…

Q: Describe similarities and differences between convex lenses and concave mirrors.

A: Given Convex lense and concave mirror We have to find the similarities and differences between these…

Q: A beam of light or electrons passes through two closely spaced slits to create an interference…

A: number of closely spaced slits = 2 slit width = d distance of screed = D wavelength = λ

Q: not incomplete, all the info is right there. Use the question to solve for (a) then (b) then (c)…

Q: An object initially at rest explodes in two fragments of masses 2.0 kg and 4.6 kg that move in…

A: Mass of first fragment m1 = 2.0 kg Mass of second fragment m2 = 4.6 kg The speed of first fragment…

Q: Incorrect Question 8 0/ 1 pts Side A=43 and Side B=12, Calculate side H. Give your answer to 1…

A: Given: Side 1 (A) = 43 Side 2 (B) = 12

Q: A stone is thrown vertically upward with a velocity of 10 m/s from a window 50 meters above ground…

Q: A ski patroller pulls a rescue toboggan across a flat snow surface by exerting a constant force of…

A: Work = force × displacement ×Cos(x) Here, force = 30 pounds = 30lb Displacement = 210 feet x =…

Q: 250lb block is initially at rest on the flat surface that is inclined at 30 degree. If the…

Q: In the circuit shown in figure, find 10 V 4 V ww- 3Ω

A: Power is the amount of energy transferred or converted per unit time. Here, we calculate the given…

Q: A cylindrical metal tank measures 1.0 meter in diameter and 1.5 meters in height. It can hold how…

Q: The average speed becomes a close approximation to the instantaneous speed when: Select one: O The…

A: The average speed becomes a close approximation to the instantaneous speed when body is moving in an…

Q: 40 A car with a rate of 20kph moves toward Welcome Rotonda and increases at 30kph. The acceleration…

Q: How far from a 38.0-mm-focal-length lens must an object be placed if its image is to be magnified…

A: The magnification(m) for real image is negative, and magnification for virtual image is positive.…

Q: What is the minimum orbital period of motion of a silicate rock with A=0.4 around the sun?

Q: Create a diagram of a roller coaster track containing at least two peaks and two valleys. As you…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub parts for…

Q: Given the vector A = 100.00N at 30.00º above the negative x-axis. In terms of rectangular form, the…

Q: In reference to the figure below, Given: a 8.57 ft 5.2 ft C 24.1 ft Determine: a) Horizontal…

Q: If the motion of a jet after landing on a runway is shown by the a-t graph below. Note that at t = 0…

A: Dear student When acceleration is constant we can apply the equation of motions as: v = u + at Here…

Q: Part A A 20.0-kg crate sits at rest at the bottom of a 11.5 m -long ramp that is inclined at 35 °…

Q: B 6. 70 40° 8 The scalar product of A and C is

A: The dot product or scalar product of two vectors A→ and C→ is given by,…

Q: The change in vapor pressure of a particular liquid at temperature T (in kelvins) is the atmospheric…

Q: ce of the combination of the r

A: GivenRA=25 ΩRB=30 ΩRC=15 ΩRD=10 Ω

Q: A 20.0-kg crate sits at rest at the bottom of a 11.5 m-long ramp that is inclined at 35 ° above the…

Q: d A person with a height of 1.4 meters stands at the edge of a lake that is 2.8 meters deep, d = 2.8…

Q: dockworker applies a constant horizontal force of 80.0N to a block of ice on a smooth horizontal…

A: GivenHorizontal force applied on block, F=80 NDistance moved by block, s=11 mInitial velocity of…

Q: Refer to the given circuit. R2 = 5 2 R = 6 N R3 = 4 N R4 = 4 2 R5 = 8 2 DURACELL Vr = 10 V How much…

Q: After a fall, a 71 kg rock climber finds himself dangling from the end of a rope that had been 15 m…

Q: 3. In a circuit, a variable resistor is to be connected across a potential difference of 60 V to…

Q: Refer to the given circuit. R2 = 5 0 R1 = 6 N R3 = 4 N R4 = 4 N R5 = 8 N DURACELL Vr = 10 V Solve…

A: The equivalent resistance of n-resistor (R1, R2, R3, ... ,Rn) in series is given by, Req=R1+R2+R3+…

Q: Given the vectors: A = 3.9m North B = 9.5m West C= 3.9m South Find the total displacement.

Q: a certain vehicle 3 hours to travel a distance of 120 km. On its way back, it took him only 2 hours…

A: As the first question belongs to mathematics so as per Bartleby's guidelines we can't answer it.…

Q: A block of wood has a mass of 3.81 kg and a density of 684 k that it will float in water with 0.851…

A: GivenMass of wooden block. mwood=3.81 kgDensity of wooden block. ρwood=684 kg/m3Density of lead,…

Q: A horizontal force of 20 N acts on a 2 kg object on a smooth inclined plane as shown below. What is…

Q: Direction: Express the following properties into MLT and FlT forms. Show your answers on the space…

Q: A rope is wrapped around a circular pulley such that its acceleration is given by a = 10t (in m/s?,…

Q: In Figure (a), two identical rectangular rods of metal are welded end to end, with a temperature of…

Q: 1. Over the entrance to a restaurant is mounted a strip of equally spaced light bulbs, as shown in…

Q: Asap need, Thank you 213124qwsdawdw

Q: Boat A moves with a constant velocity of 20ft/s, starting from the position shown in the…

Q: Solve the given problems. 1. Determine the distance x to the center of mass of the homogeneous rod…

Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

Statics and Torque
1. The figure shows a pair of forceps used to hold a thin plastic rod firmly. If the
thumb and finger each squeeze with a force of Fr= FF= 11.0 M, what force do
the forceps jaws exert on the plastic rod?
Jaws
Rod
FT
8.50 cm
2.70 cm
2. A 75-kg adult sits at one end of a 9.0-m-long board. His 25-kg child sits on the
other end. (a) Where should the pivot be placed so that the board is balanced,
ignoring the board's mass? (b) Find the pivot point if the board is uniform and has
a mass of 15 kg.
3. Calculate FA and Fg for the beam shown below. The downward forces represent
the weights of machinery on the beam. Assume the beam is uniform and has a
mass of 280 kg.
FA 4300 N
3100 N 2200 N F
4.0 m-3.0 m
2.0 m
1.0 m
4. Three children are trying to balance on a seesaw, which includes a fulcrum rock
acting as a pivot at the center, and a very light board 3.2 m long. Two playmates
are already on either end. Boy A has a mass of 45 kg, and boy B a mass of 35
kg. Where should girl c, whose mass is 25 kg, place herself so as to balance the
seesaw?
m 35 kg
m= 45 kg
m 25 kg

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

The leg and cast in Figure P4.40 weigh 220 N (w1). Determine the weight w2 and the angle needed so that no force is exerted on the hip joint by the leg plus the cast. Figure P4.40
The leg and cast in Figure P4.40 weigh 220 N (w1). Determine the weight w2 and the angle needed so that no force is exerted on the hip joint by the leg plus the cast. Figure P4.40
If you used an ideal pulley of the type shown in Figure 9.26(a) to support a car engine of mass 115 kg, (a) What would be the tension in the rope? (b) What force must the ceiling supply, assuming you pull straight down on the rope? Neglect the pulley system's mass.
Why are the forces exerted on the outside world by the limbs of our bodies usually much smaller than the forces exerted by muscles inside the body?
The board sandwiched between two other boards in Figure P4.91 weighs 95.5 N. If the coefficient of friction between the boards is 0.663, what must be the magnitude of the compression forces (assumed to be horizontal) acting on both sides of the center board to keep it from slipping? Figure P4.91
Swimmers and athletes during competition need to go through certain postures at the beginning of the race. Consider the balance of the person and why start-offs are so important for races.
Measuring coefficients of friction A coin is placed near one edge of a book lying on a table, and that edge of the book is lifted until the coin just slips down the incline as shown in Figure P4.82. The angle of the incline, C, called the critical angle, is measured. (a) Draw a free-body diagram for the coin when it is on the verge of slipping and identify all forces acting on it. Your free-body diagram should include a force of static friction acting up the incline. (b) Is the magnitude of the friction force equal to sn for angles less than C? Explain. What can you definitely say about the magnitude of the friction force for any angle c? (c) Show that the coefficient of static friction is given by s = tan c. (d) Once the coin starts to slide down the incline, the angle can be adjusted to a new value c c such that the coin moves down the incline with constant speed. How does observation enable you to obtain the coefficient of kinetic friction? Figure P4.82
Why are the forces exerted on the outside world by the limbs of our bodies usually much smaller than the forces exerted by muscles inside the body?
The leg and cast in Figure P4.20 weigh 220 N (w1). Determine the weight w2 and the angle α needed so that no force is exerted on the hip joint by the leg plus the cast.
A typical jar that has been tightened to a reasonable degree requires 2.0 N⋅mN⋅m to open. f you grab a 8.2-cmcm-diameter jar lid with one hand so that your thumb and fingers exert equal magnitude forces on opposite sides of the lid, as in the figure, what is the magnitude of each of the forces?
Q8 A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.62 g coins stacked over the 30.9 cm mark, the stick is found to balance at the 38.4 cm mark. What is the mass of the meter stick?
An 82.0 kg-diver stands at the edge of a light 5.00-m diving board, which is supported by two narrow pillars 1.60 m apart, as shown in the figure. Q1) Why is the direction of the force exerted on the diving board by pillar A upward? Q2) Why is the direction of the force exerted on the diving board by pillar B downward?