Question

`A body initially at rest is acted upon by a constant force.The rate of change of its kinetic energy varies (a) linearly with square root of time (b) linearly with time (c) linearly with square of time (d) inversely with time`​

Answer 1

Answer:

According to Newtons `II^(nd)` law of motion

`F=marArr F=(m(v-u))/(t)`

`therefore` The rate of change of its kinetic energy varies inversely with time.

Explanation:

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Answer 2

Answer:

c

Explanation:

c

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