Work, Power and EnergyHard
Question
Curved surfaces shown in the figure are smooth and the horizontal surface is rough for which coefficient of friction is 0.2. If the block is released from P then at what distance from A it will stop ? (g = 10m/s2)
Options
A.1m
B.2m
C.3m
D.4m
Solution
K1 + U1 = K2 + U2 + Wf
mgh = (μmg) d
d =
= 5m
Particle goes from A to B then B to A and comes to rest at C.
mgh = (μmg) d
d =
= 5mParticle goes from A to B then B to A and comes to rest at C.
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