(II) A man doing push-ups pauses in the position shown in Fig. 9–65. His mass m = 68 kg. Determine the normal force exerted by the floor (a) on each hand; (b) on each foot. 28 cm mg 42 cm 95 cm FIGURE 9-65 Problem 25.

(II) A man doing push-ups pauses in the position shown in Fig. 9–65. His mass m = 68 kg. Determine the normal force exerted by the floor (a) on each hand; (b) on each foot. 28 cm mg 42 cm 95 cm FIGURE 9-65 Problem 25.

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter3: Force And Motion

Section: Chapter Questions

Problem 31SA: When a high diver in a swimming event springs from the diving board and tucks in, a rapid spin...

See similar textbooks

Related questions

Q: A woman holds a 2.0-m-long uniform 10.0-kg pole as shown in Fig. 9–78. (a) Determine the forces she…

A: Given :-Length of the pole is 2.0 m mass of the pole is 10.0 kg

Q: A cube of side l rests on a rough floor. It is subjected to a steady horizontal pull F, exerted a…

Q: 17-33. Determine the largest force P that can be applied to the 60-kg cart, without causing one of…

A: The force P passes below the mass centre of the cart which tends the cart to rotate in clockwise.

Q: 2.20 m 0.80 m 1.20 m 0.50 m Capytigtee 200s Pason Prece Hal ine FIGURE 9-47 This table is 25 kg. How…

Q: A uniform meter stick with a mass of 180 g is supported horizontally by two vertical strings, one at…

A: Given data The mass of the meter stick is: m = 180 g (a) The free-body diagram for the above…

Q: {-360k}lb, 2–105. If the resultant of the four forces is FR determine the tension developed in each…

A: Given that: FR→=-360 k^To determine the tension in the each cable.Let, FA=FB=FC=FD= F

Q: 67. A 15.0-kg ball is supported from the ceiling by rope A. Rope B pulls downward and to the side on…

Q: 5.17 The arm shown in Fig. 5-16 supports a 4.0-kg sphere. The mass of the hand and forearm together…

Q: A rectangular block twice as high as it is wide is resting on a board. The coefficient of static…

Q: A 25-kg object is being lifted by two people pulling on the ends of a 1.15-mm-diameter nylon cord…

Q: (II) Figure 9–50 shows a pair of forceps used to hold a thin plastic rod firmly. If the thumb and…

Q: (II) A 2500-kg trailer is attached to a stationary truck at point B, Fig. 9–61. Determine the normal…

A: Free body diagram

Q: Suppose the humerus is reduced uniformly in size by a factor of two. This means that both the length…

A: Here, the amount of the stretch is inferred as the amount of the stress developed in the humerus for…

Q: (II) A 20.0-m-long uniform beam weighing 650 N rests on walls A and B, as shown in Fig. 9–62. (a)…

A: Given A 20.0-m-long uniform beam weighing 650 N rests on walls A and B, as shown in Fig. 9-62. (a)…

Q: As an oil well is drilled, each new section of drill pipe support its oun weight crel that of the…

A: Given, L∘=6.0 mL∘=length of the pipeγ=1.6×1010 N/m2

Q: Calculate the change in length of the upper leg bone (the femur) when a 70.0 kg man supports 62.0 kg…

A: Details given: Mass of man = 70.0kg Supports mass = 62kg Assuming bone is cylindrical Length = 40cm…

Q: The center of mass of a rigid body always lies inside the body. Is this statement true or false?…

A: The center of mass of a rigid body can lie inside and outside of the body. So the statement is…

Q: (II) Find the tension in the two cords shown in Fig. 9-45. Neglect the mass of the cords, and assume…

Q: 42. A crane in a marble quarry is mounted on the quarry's rock walls and is support- ing a 2500-kg…

A: Mass of boom, m=830Kg Mass of marble,M=2500Kg Length of boom, L=15m

Q: A heavy ball suspended by a cable is pulled to the side by a horizontal force F as shown in Fig.…

Q: 5.17 The arm shown in Fig 5-16 supports a 4.0-kg sphere. The mass of the hand and forearm together…

Q: (II) A (lightweight) pallet has a load of ten identical cases of tomato paste (see Fig. 7–39), each…

A: Given A (lightweight) pallet has a load of ten identical cases of tomato paste (see Fig. 7–39),each…

Q: (II) Find the tension in the two cords shown in Fig. 9–52. Neglect the mass of the cords, and assume…

Q: •19 To crack a certain nut in a nutcracker, forces with magnitudes of at least 40 N must act on its…

A: Given F = 40N L = 12cm d= 2.6cm To find force ating perpendicular to the Handel's

Q: 4-33. The pipe assembly is subjected to the force c F = {600i + 800j – 500k} N. Determine the moment…

A: If a force F acted on a body of mass m , then the acted moment of force of the body about a point…

Q: 405 joiht, as SHOWH II FIg. 0.01. P-6.15. An object of mass M= 10 kg is lifted by a standard man…

A: Given: Mass of object: M=10kg The angle made by lower arm,θ=35° The value of…

Q: Assuming your feet are not held down, which is more difficult: doing sit-ups with your knees bent or…

Q: A cook holds a 2.00 kg carton of milk at arms length. What force must exerted by biceps muscle? (…

A: Mass = 2.00 kg FB--Force on biceps. Fg=mg = Weight of 2 kg carton of milk

Q: Two identical, uniform beams are symmetrically set up against each other (Fig. 9–87) on a floor with…

A: Given The coefficient of static friction μs = 0.50

Q: An 82.0 kg-diver stands at the edge of a light 5.00-m diving board, which is supported by two narrow…

Q: (II) A 172-cm-tall person lies on a light (massless) board which is supported by two scales, one…

A: The expression for the Center of gravity CG is given by CG=W1d1+W2d2W1+W2 Where W1 and W2 are the…

Q: (II) The Achilles tendon is attached to the rear of the foot as shown in Fig. 9–73. When a person…

A: Given human system is of rotational motion. Data given, FT is acting in upward…

Q: 7-36 Find the smallest angle 0 for which a sufficiently large force P would cause the uniform log AB…

A: Draw the free-body diagram of the log AB.

Q: Fig. I shows a uniform ladder t Amitha lead cn it. Ii is leaning.against avreugh wertical availl.…

A: According to the condition of equilibrium, the net or algebraic sum of all forces and moment about a…

Q: (II) A traffic light hangs from a pole as shown in Fig. 9–59. The uniform aluminum pole AB is 7.20 m…

A: Given: A traffic light hangs from a pole as shown in Fig. 9-59. The uniform aluminum pole AB is 7.20…

Q: (II) A 0.75-kg sheet is centered on a clothesline as shown in Fig. 9-63. The clothesline on either…

Q: A B 3.0 m 1.0 m Copyroht0 200S Pearson Prentice Hal. Inc. FIGURE 9-42 A 58 kg person stands at tip…

Q: *34. (I) Approximately what force, Fy, must the extensor muscle in the upper arm exert on the lower…

A: We have from the knowledge of torque as the product of force and perpendicular distance between…

Q: In a mountain-climbing technique called the "Tyrolean tra- verse," a rope is anchored on both ends…

Q: 12-203. Determine the time needed for the load at B to attain a speed of 10 m/s, starting from rest,…

A: 1. initial velocity, u = 0 m/s final velocity, v = 10 m/s acceleration, a = 3 m/s2

Q: A rope of negligible mass is stretched horizontally between two supports that are 3.44 m apart.When…

Q: *15-36. The 50-kg boy jumps on the 5-kg skateboard with a horizontal velocity of 5 m/s. Determine…

A: Given: The mass of the boy is 50 kg. The mass of the skateboard is 5 kg. The horizontal velocity of…

Q: A 60-kg woman stands on the very end of a uniform board, of length (, which is supported one-quarter…

Q: FIGURE 9-67 Problem 27. W = 22 N 28. (III) You are on a pirate ship and being forced to walk the…

A: We have to find minimum force nails must exert on plank

Q: Why is it not possible to sit upright in a chair and rise toyour feet without first leaning forward?

Q: •19 To crack a certain nut in a nutcracker, forces with magnitudes of at least 40 N must act on its…

Q: A bungee jumper momentarily comes to rest at the bottomof the dive before he springs back upward. At…

A: The bungee jumper is not in equilibrium at the bottom of the dive before he springs back upwards.

Question

(II) A man doing push-ups pauses in the position shown in
Fig. 9–65. His mass m = 68 kg. Determine the normal force
exerted by the floor (a) on each hand; (b) on each foot.
28 cm
mg
42 cm
95 cm
FIGURE 9-65 Problem 25.

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

Step 2

Step 3

Step 4

Step 5

Step 6

Trending now

This is a popular solution!

Step by step

Solved in 6 steps with 9 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

A nucleus that captures a stray neutron must bring the neutronto a stop within the diameter of the nucleus by means of thestrong force. That force, which “glues” the nucleus together, is approximatelyzero outside the nucleus. Suppose that a stray neutronwith an initial speed of 1.4 * 107 m/s is just barely captured by anucleus with diameter d = 1.0 * 10-14 m. Assuming the strongforce on the neutron is constant, find the magnitude of that force.The neutron’s mass is 1.67 * 10-27 kg.
When catching a fast-moving baseball, why would the player want to extend his arm far out ahead of himself when catching the ball?
In a judo foot-sweepmove, you sweep your opponent’sleft foot out from under him whilepulling on his gi (uniform) towardthat side. As a result, your opponentrotates around his right footand onto the mat. Figure 10-44shows a simplified diagram ofyour opponent as you face him,with his left foot swept out. Therotational axis is through point O.The gravitational force on himeffectively acts at his center ofmass, which is a horizontal distanced = 28 cm from point O.Hismass is 70 kg, and his rotational inertiaabout point O is 65 kg m2.What is the magnitude of his initialangular acceleration about point O if your pull on his gi is (a) negligibleand (b) horizontal with a magnitude of 300 N and applied atheight h = 1.4 m?
Can the conservation of energy be used to solve problems involving elastic impact, which assumes that the body is rigid?
The system is at rest with the springunstretched when � = 0. The 3 kg particle isthen given a slight nudge to the right andcomes to rest when � = 49°. If � = 100 N/mand � = 0.40 m, find the magnitude of theangular velocity of the slender rod when � =25°
Assuming your feet are not held down, which is more difficult: doing sit-ups with your knees bent or with your legs straight out?
When a high diver in a swimming event springs from the diving board and tucks in, a rapid spin results. Why?
Check your Understanding Explain which one of the following satisfies both equilibrium conditions: (a) a tennis ball that does not spin as it travels in the air, (b) a pelican that is gliding in the air at a constant velocity at one altitude; or (c) a crankshaft in the engine of a parked car.
Check Your Understanding A 50-kg person stands 1.5 m away from one end of a uniform 6.0-m-long scaffold of mass 70.0 kg. Find the tensions in the two vertical ropes supporting the scaffold.
(III) Air in a 120-km/h wind strikes head-on the face of abuilding 45 m wide by 75 m high and is brought to rest. Ifair has a mass of 1.3 kg per cubic meter, determine theaverage force of the wind on the building.
Show that, as explained in the text, a force F⊥ exerted on a flexible medium at its center and perpendicular to its length (such as on the tightrope wire in Figure 5.26) gives rise to a tension of magnitude T = F⊥ /2sin(θ) .
To tighten the loose head of a hammer, the base of the handle is sometimes strucj against a hard surface, what is the physics behind this maneuver?