The 250-lb concrete block A is released from rest in the position shown and pulls the 400-lb log up the 30° ramp. If the coefficient of kinetic friction between the log and the ramp is 0.5, determine the velocity of the block as it hits the ground at B. 400 lb A 250 lb B 30° H₂ = 0.5 T 20′

The 250-lb concrete block A is released from rest in the position shown and pulls the 400-lb log up the 30° ramp. If the coefficient of kinetic friction between the log and the ramp is 0.5, determine the velocity of the block as it hits the ground at B. 400 lb A 250 lb B 30° H₂ = 0.5 T 20′

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.71P: The 600-lb cable spool is placed on a frictionless spindle that has been driven into the ground. If...

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Question

The 250-lb concrete block A is released from
rest in the position shown and pulls the 400-lb
log up the 30° ramp. If the coefficient of
kinetic friction between the log and the ramp
is 0.5, determine the velocity of the block as it
hits the ground at B.
400 lb
A
T
250 lb
20'
B
30°
H₂ = 0.5

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