Ex.4 The coefficients of static and kinetic friction between the 100-kg block and the inclined plane are 0.30 and 0.20, respectively. Determine (a) the friction force F acting on the block when P is applied with a magnitude of 200 N to the block at rest, (b) the force P required to initiate motion up the incline from rest, and (c) the friction force F acting on the block if P= 600 N. 100 kg 20° H,= 0.30 HA =0.20 15°
Ex.4 The coefficients of static and kinetic friction between the 100-kg block and the inclined plane are 0.30 and 0.20, respectively. Determine (a) the friction force F acting on the block when P is applied with a magnitude of 200 N to the block at rest, (b) the force P required to initiate motion up the incline from rest, and (c) the friction force F acting on the block if P= 600 N. 100 kg 20° H,= 0.30 HA =0.20 15°
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 7.48P: Find the smallest distance d for which the hook will remain at rest when acted on by the force P....
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Transcribed Image Text:Ex.4
The coefficients of static and kinetic friction between the 100-kg block and the inclined plane are
0.30 and 0.20, respectively. Determine (a) the friction force F acting on the block when P is applied
with a magnitude of 200 N to the block at rest,
(b) the force P required to initiate motion up the incline from rest, and (c) the friction force F acting
on the block if P = 600 N.
100 kg
200
H, = 0.30
HA = 0.20
15°
LEC.4
FRICTION
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