A car is moving at an initial speed of 65 kph was stopped within 3 seconds after the application of brakes. Compute the average coefficient of friction or skid resistance. (Hint: Use Newton’s 2nd Law of Motion)

A car is moving at an initial speed of 65 kph was stopped within 3 seconds after the application of brakes. Compute the average coefficient of friction or skid resistance. (Hint: Use Newton’s 2nd Law of Motion)

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter12: Oscillatory Motion

Section: Chapter Questions

Problem 2P: When a 4.25-kg object is placed on top of a vertical spring, the spring compresses a distance of...

See similar textbooks

Related questions

Q: A driver in a 1000 kg car traveling at 20 m/s slams on the breaks and skids to a stop. If the…

A: Given:Velocity of the car = 20 m/sCoefficient of friction = 0.8

Q: A 1.5-tonne vehicle accelerates to 90 miles per hour in 10 seconds. Calculate the force exerted by…

Q: A block of mass m resting on a 20 degree slope. The block has coefficients of friction us = .64 and…

A: Given that :- Mass of block on the shape = m Angle of inclination , θ = 20° Coefficient of static…

Q: A block of mass six (6) kilogram resting on a horizontal surface is connected by a cord passing over…

A: The acceleration of each block is a = 0.981 m/s2 Tension on the cord is T = 35.32 N

Q: A vehicle downhill with a slope of 0.15 and a drag factor of 0.7 leaves a skidmark of 20.6 meters,…

Q: A driver in a car traveling at 23 m/s slams on the brakes and skids to a stop. If the coefficient of…

A: Please see the answer below.

Q: mall steel balls fall from rest through the opening at A at the steady rate of 3 per second. Find…

A: Given: The number of the ball per second is 3. The initial speed of the ball is 0 m/s. The lower…

Q: Two masses are connected by a string which passes over a pulley with negligible mass and friction.…

A: The equations of motions can be written as : m2g-T = m2aT-m1g sin θ =m1a Here m1 is the larger mass…

Q: If the coefficient of kinetic friction is 0.06 between a 2.26 block and an icy surface, find the…

Q: A spring can be compressed 2.0 cm by a force of 341 N. A block with a mass of 7.0 kg is released…

Q: In comparison to a gradual ramp, a steeper ramp results in: 1) work to be done to get to the top…

A: Let in both situation person climb up to h height from the ground slowly. Then work done,…

Q: You push a box (mass 3 kg) so that its initial speed is 2.2 m/s. It slides across a rough floor…

A: KE=Wfriction12mv2=μkmgdd=v22μkg

Q: . A string is attached to a 500 grams which is placed on a rough 300 incline plane. This string goes…

Q: The cable of a crane is lifting a 950 kg girder. The girder increases its speed from 0.25 m/s to…

A: Given:-

Q: A 2.5 kg crate falls from a height of 3.0 m onto an industrial spring scale with a spring constant…

Q: It was given that Amer weighted 7.8 lbs when he was born, while Mohamad weighted 3.5 Kg. They…

A: Mass of Amer is 7.8 lbs Mass of Mohammad is 3.5 kg To find : what type of error .

Q: A ship of mass 3 x 10'kg and initially ai rest can be pulled through a distance of 3 m by means of a…

A: Given, Mass=3×10^7kg Distance=3m Force=5×10^4N

Q: When an object is moving at a constant velocity, it is said to be in a state of. O kinetic friction…

A: Let us look at definitions of each term: Kinetic Friction - defined as a force that acts between…

Q: A load of 54 N attached to a spring hanging vertically stretches the spring 7.5 cm. The spring is…

A: Given data: Force, F = 54N m =7.5cm=0.075m Amplitude, x = 10cm =0.1m

Q: A vehicle with a mass of 3087.02 kg is being tested for its engine consumption by measuring the…

A: Solution: As given that m = 3087.02 kg coefficient of kinetic friction of the wheels is 0.67 initial…

Q: A box is resting on an incline (40 degree angle incline) and this incline has a coefficient of…

A: The initial height at which the box was initially at rest is calculated by using the trigonometric…

Q: It requires a force of 100 N to stretch a spring of negligible mass by a distance of 0.1 m. If the…

A: Hooke’s law is given as, Here, F denotes the force, k denotes the spring constant and x denotes the…

Q: Two carts are at rest upon a track and connected by a compressed spring. The spring is released,…

Q: A 70-pound object is thrown upward with an initial velocity of 45 ft/s along a plane inclined 25 °…

A: The free body diagram for the given problem is shown below The forces acting on the object as it…

Q: A 46.0-kg crate was pushed 10.4 m across a rough floor without acceleration by two people, with an…

A: Frictional force is the opposing force formed between two surfaces that are trying to move in the…

Q: An object of mass m=2 kg placed on a rough horizontal surface is given an initial speed of 9m/s and…

A: Given: The mass of the object is 2 kg. The initial speed of the object is 9 m/s. The final speed of…

Q: Pick out the only vector quantity A) pressure B) impulse C) gravitational potential D)…

A: Any quantity is called a vector quantity, if it has magnitude as well as direction.

Q: A truck of mass 5 tonnes runs into a buffer stop having three buffer springs each of 35 kN/cm…

A: The springs store elastic potential inside them when stretched from their equilibrium position.…

Q: A forward horizontal force of 8N is used to pull a 2-kg crate at constant velocity across a…

A: In the given problem, the mass is moving with constant velocity that means the acceleration of the…

Q: How much tension is in the spring?

A: Explanation and answers of each part is in next step.

Q: The value of the spring constant depends on a. the type of material used to make the spring.…

A: The spring constant of a spring is the constant of force proportional to the stretch or compression.…

Q: A boy takes 11.8 seconds to slide down a smooth inclined plane of angle such that tan(e) = 1.6,…

A: Given data: The initial time is taken by a boy to slide down is, t1 = 11.8 sec. The angle of…

Q: A spring with a spring constant of 0.70 N/m is stretched 1.5 m. What was the net force?

Q: This answer has no units ° (degrees) ga ine m kg m/s m/s^2 W

Q: A 12 kg block sits on a level table and a string runs over the edge of the table on a pulley at an…

Q: A block of mass m is on top of a block of mass M = 3m. The two blocks are connected by a string that…

Q: A block of wood is projected up an inclined plane with initial speed og. If the inclination of the…

Q: A driver of a 1000 kg car traveling at 20 m/s slams on the brakes and skids to a stop. If the…

Question

A car is moving at an initial speed of 65 kph was stopped within 3 seconds after the application of brakes.
Compute the average coefficient of friction or skid resistance. (Hint: Use Newton’s 2nd Law of Motion)

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

A student working on a school project modeled a trampoline as a spring obeying Hookes law and measured the spring constant of a certain trampoline as 4617 N/m. If a child of mass 27.0 kg compresses the trampoline vertically by a maximum of 0.25 m, while bouncing up and down, what is the childs acceleration at the moment of maximum compression?
Show that for small changes in height h, such that hRE , Equation 13.4 reduces to the expression U=mgh .
When a 4.25-kg object is placed on top of a vertical spring, the spring compresses a distance of 2.62 cm. What is the force constant of the spring?
A car’s bumper is designed to withstand a 4.0-km/ h (1.1-m/s) collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance. Calculate the magnitude of the average force on a bumper that collapses 0.200 m while bringing a 900-kg car to rest from an initial speed of 1.1 m/s.
A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.18 and the push imparts an initial speed of 3.9 m/sm/s ? Express your answer to two significant figures and include the appropriate units.
If the speed of a car is increased by 70%, by what factor will its minimum braking distance be increased, assuming all else is the same? Express your answer as a percent increase.
A 1,000 lbs block is pulled up a 2 degree incline by a cable exerting a constant force F of 600 lbs. if the coefficient of friction between the block and the plane is 0.5, how fast will the block be moving up the plane 10 seconds after the pull is applied?
If a 3.15 kg object is placed on a frictionless incline of 70.5 º and released from rest, what is speed of the object down the incline after traveling a distance of 1.5 m? Enter a number rounded to 2 decimal places and assume it has proper SI units.
Small steel balls fall from rest through the opening at A at the steady rate of 3 per second. Find the vertical separation h of two consecutive balls when the lower one has dropped 1.6 meters. Neglect air resistance.
How much time does it take for a mass traveling down a frictionelss slope of 30 degrees of unknown distance to reach a speed of 2.5 m/s. Speed initial = o Slope of infinite length.
A 2.5 kg crate falls from a height of 3.0 m onto an industrial spring scale with a spring constant of 2.5 x 105 N/m. At its greatest compression the reading on the scale (in Newtons) is:
A 2.0 kg mass is placed against a spring of force constant 800 N/m, which has been compressed 0.22 m, as illustrated. The spring is released, and the object moves along the horizontal, frictionless surface and up a frictionless slope. A diagram is attached below. Calculate: a) the maximum velocity of the mass. b) the speed of the mass when it reaches a vertical height of 0.50 m up the slope.