Answer :

Let acceleration of the blocks be

Let tension in the string be T


Mass m1=300 g=0.3 kg

Mass m2=600 g=0.6 kg

Let the mass 1 be moving upward and mass 2 moves downward

Equation for mass 1,


Equation for mass 2,


Adding both the equation we get,

Now putting the values, we get,


Using the equation of motion,

Where u=initial velocity = 0 m/s and tie t=2s

ii) From equation (1), we get,

iii) Force on the clamp is due to tension from both side of the pulley, i.e., twice of tension

required force

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