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Grade: 11
        
A particle of mass M is joined to very heavy body by a light string passing over a light pulley .The bodies are free to move the total downward force on the pulley is 
8 months ago

Answers : (1)

Arun
21969 Points
							
The heavy body will fall because of acceleration due to gravity. The acceleration of the lighter body will be 'g' in upward direction. 
Taking the equilibrium of the small body 
 T - mg = ma 
but a = g 
Therefore: 
T - mg = mg 
T = 2mg 
Reaction at the pulley 
2T = 4mg
 
Regards
Arun
 
8 months ago
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