Question

ball of mass m₁ =5.9 kg and a block of mass m₂ =3.3 kg are connected with a lightweight string over a pulley with moment of inertia I and radius R=0.25m. The coefficient of kinetic friction between the table top and the block of mass m₂ is μ_k = 0.5. If the magnitude of the acceleration is a=2.9m/s².

a)What are the tensions T₁ and T₂ in the string.
T₁= N

T₂= N
b)Calculate the moment of inertia of the pulley.

I= kg m²
c) What is the change of the kinetic energy of the system if the system is released from rest and the ball decends a distance h=7.4 m downward.

ΔK = J
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Answer 1

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