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Two blocks of mass 4kg and 6kg are conne...

Two blocks of mass 4kg and 6kg are connected by a string as shown in the figure . They are initially at rest on the floor . Calculate their acceleration when a force of (a) 50N (b) 100N is applied on the pulley.

Text Solution

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Case (i):
Force on 6kg and 4kg object` =F/2=25N`.
The applied froce in each block is less than the weight of each block . So the blocks will not move

Case (ii):
Force on each block `=(100)/2=50N`.
The 6kg block will not move because applied force is less than its weight .
On 4kg mass
Resutant force = mass x acceleration
`50-40=a , 10=4a , a=2.5 m//s^(2)`
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