Ch.7 Problem 94 357mph) speed limit. Should you fight the speeding ticket incourt?bns (0,0)95. A crate is being pushed across a rough floor surface.If no force is applied on the crate, the crate will slow downand come to a stop. If the crate of mass 50 kg moving atspeed 8 m/s comes to rest in 10 seconds, what is the rateat which the frictional force on the crate takes energy away a stop. (a)before it collides with the spring? (b) Calculate the workkinetic energy does the box havedone by the spring. (c) Determine the spring constant of thespring.94. You are driving your car on a straight road with acoefficient of friction between the tires and the road of 0.55.A large piece of debris falls in front of your view and youimmediate slam on the brakes, leaving a skid mark of 30.5m (100-feet) long before coming to a stop. A policemansees your car stopped on the road, looks at the skid mark,and gives you a ticket for traveling over the 13.4 m/s (30CHALLENGE PROBLEMS

Answered: Image /qna-images/answer/59a67a71-09e6-4218-8290-d3243c9469ba.jpg

94. You are driving your car on a straight road with a coefficient of friction between the tires and the road of 0.55. A large piece of debris falls in front of your view and you immediate slam on the brakes, leaving a skid mark of 30.5 m (100-feet) long before coming to a stop. A policeman sees your car stopped on the road, looks at the skid mark, and gives you a ticket for traveling over the 13.4 m/s (30

94. You are driving your car on a straight road with a coefficient of friction between the tires and the road of 0.55. A large piece of debris falls in front of your view and you immediate slam on the brakes, leaving a skid mark of 30.5 m (100-feet) long before coming to a stop. A policeman sees your car stopped on the road, looks at the skid mark, and gives you a ticket for traveling over the 13.4 m/s (30

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 79AP: Consider a block of mass 0.200 kg attached to a spring of spring constant 100 N/m. The block is...

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Consider a block of mass 0.200 kg attached to a spring of spring constant 100 N/m. The block is placed on a frictionless table, and the other end of the spring is attached to the wall so that the spring is level with the table. The block is then pushed in so that the spring is compressed by 10.0 cm. Find the speed of the block as it crosses (a) the point when the spring is not stretched, (b) 5.00 cm to the left of point in (a), and (c) 5.00 cm to the right of point in (a).
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