Question

A object starting from rest acquires a velocity of 25m/s in 10s .If mass of object is 3kg .Find Force applied on the object. Hint:- Find Acceleration then Use newtons second law .

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Answer 1

Answer:

Given:

$initial \: valocity \: of \: car(u) = {0ms}^{ - 1} \\ final \: valocite \: of \: car(v) = {25ms}^{ - 1} \\ time(t) = 10s$

We know that,

$v = u + at \\ 25 = 0 + a(10) \\ a = {3ms}^{ - 1}$

We know that,

$F = ma \\ = 3 \times 3 \\ or \: F= 9N$

I hope it helps!