A particle of mass m = 5.00 kg is released from point A and slides on the fricti

Question

A particle of mass m = 5.00 kg is released
from point A and slides on the frictionless track
shown in Figure P6.24. Determine (a) the particles
speed at points B and C and (b) the net work done by
the gravitational force in moving the particle from A
to C.

A particle of mass m = 5.00 kg is released from point A and slides on the frictionless track shown in Figure P6.24. Determine (a) the particle?s speed at points B and C and (b) the net work done by the gravitational force in moving the particle from A to C.

Explanation / Answer

speed at B = 2g(5-3.2) = 5.93 m/s

speed at C =2g(5-2) = 7.66 m/s

net workdone = mg(5-2) = 5*9.8*3 =147 J

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