COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 5, Problem 68QAP
To determine
Force on the ball when leaving the hand of the pitcher
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The block at point A is released from rest on a smooth track, which is one quadrant of a circle of radius 5m. It continues to move along a rough surface from point B to E and acquires a velocity of 8.6 m/s at point C. If its velocity at E is 2.25 m/s, calculate: a) velocity at B b) the coefficient of friction between the block and the surface B to E c) mass of the block, if the loss in KE between points D to C is 24.05 J d) velocity at D e) distance DE
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PROBLEM I
The 260kg crate shown in the figure rests on a horizontal surface for which the coefficient of kinetic friction is 025. If the crate is subjected to a 400 N towing force as
shown determine the velocity of the crate in 5 s starting from rest
PROBLEM 2
PROBLEM 3
The 80 kg block A shown in Figure is released from rest If the masses of the puleys and the cord are neglected determine the speed of the 12 kg block B in 3 s
m₁
P = 400 N
6 = 30°
30⁰
SH
Datum
Consider the masses my 20 kg and m, 18 kg in the system represented by the figure bekow, If the coefficient of friction is OJ and the incination angle is 30°, find the
acceleration of the system and the tension in the cord joining two mossCS
m₂
Chapter 5 Solutions
COLLEGE PHYSICS
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