Two masses are connected by a string shown in diagran. Mass M A = 4.0kg rests on

Question

Two masses are connected by a string shown in diagran. Mass MA = 4.0kg rests on a frictionless inclined plane, while mass MB = 5.0kg is initially held at a height of h = 0.75m above the floor. a) If mass MB is allowed to fall, what will be the acceleration of both masses? b) Find the tension in the connecting string. If the masses were initially at rest, find their velocty just before MB hits the floor.

Two masses are connected by a string shown in diagran. Mass MA = 4.0kg rests on a frictionless inclined plane, while mass MB = 5.0kg is initially held at a height of h = 0.75m above the floor. a) If mass MB is allowed to fall, what will be the acceleration of both masses? b) Find the tension in the connecting string. If the masses were initially at rest, find their velocty just before MB hits the floor.

Explanation / Answer

5g - T =5a T- 4g*sin32 = 4a adding the equations, 5g - 4g*sin32 = 9a so, a = 3.14 m/s2

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