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The motion of a particle of mass m is de...

The motion of a particle of mass m is described by `y =ut + (1)/(2) g t^(2)` . Find the force acting on the particale .

A

mg

B

`(mu)/(t)`

C

2mg

D

`(2mu)/(t)`

Text Solution

Verified by Experts

The correct Answer is:
A
Here, `y=ut+(1)/(2)"gt"^(2) therefore "Velocity", v=(dy)/(dt)=u+"gt"`
`"Acceleration", a=(dv)/(dt)=g` the force acting on the particle is, F=ma=mg
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