Question

The motion of a particle of mass m is described by y=ut+1/2gt².Find the force acting on it..........

Answer 1

Explanation:

y = 1/2gt² + ut {position of particle wrst time} 

dy/dt = gt + u {velocity of particle wrst time} 

d²y/dt² = g {acceleration of particle wrst time} 

F = ma = mg {where a = g} ANS

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