I hope you understand. As the 30 kg block
moves up then the 20 kg block also moves up. If the 30 kg block
moves down then 20 kg also moves down. Initially system is at rest.
So at time t=0, both velocity and displacement are taken as zero.
Comment if you have any doubt.
2-A 30-kg block is connected by an inextensible cable through the pulley to the fixed surface,...
A 50.0-kg block and a 100.0-kg weight are connected with a rope, passing over a pulley as shown in the picture. The 50.0-kg block is on a surface with a coefficient of friction of mu_k = 0.50. The pulley is a solid disc whose radius is 0.20 m and whose rotational inertia is 2.0 kg m^2. The rope does not stretch or slip. When released from rest, what is the acceleration of the system?
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A 18 kg block with a pulley attached slides along a frictionless
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the arrangement shown. The acceleration of gravity is 9.81 m/s 2 .
Find the horizontal distance the 18kg block moves when the 5.5 kg
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