(a) A block of mass 13.6 kg is sliding at an initial velocity of 4.65 m/s along horizontal surface right. The surface has a coefficient of kinetic friction of 0.254. How far will it slide before coming to rest? Calculate the time it takes to come to rest? (b) A motorcycle and a truck are both moving in the same direction in adjacent lanes on a highway. Mass of the truck is 8 times that of the motorcycle. At a particular truck instant, the speed of the motorcycle is four times as motorcycle 4v large as the speed of the truck v. Calculate the ratio of kinetic energies of the motorcycle and truck. Calculate the ratio of momentum of the two bodies.

(a) A block of mass 13.6 kg is sliding at an initial velocity of 4.65 m/s along horizontal surface right. The surface has a coefficient of kinetic friction of 0.254. How far will it slide before coming to rest? Calculate the time it takes to come to rest? (b) A motorcycle and a truck are both moving in the same direction in adjacent lanes on a highway. Mass of the truck is 8 times that of the motorcycle. At a particular truck instant, the speed of the motorcycle is four times as motorcycle 4v large as the speed of the truck v. Calculate the ratio of kinetic energies of the motorcycle and truck. Calculate the ratio of momentum of the two bodies.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.

Question

(a)
A block of mass 13.6 kg is sliding at an initial velocity of 4.65 m/s along horizontal surface
right. The
surface has a coefficient of kinetic friction of 0.254. How far will it slide before coming to rest? Calculate the
time it takes to come to rest?
(b) A motorcycle and a truck are both moving in the same
direction in adjacent lanes on a highway. Mass of the
truck is 8 times that of the motorcycle. At a particular
truck
instant, the speed of the motorcycle is four times as
motorcycle
4v
large as the speed of the truck v. Calculate the ratio of
kinetic energies of the motorcycle and truck. Calculate
the ratio of momentum of the two bodies.

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