Question

a body of mass 2kg is kept at rest. a constant force of 6.0N starts acting on it. find the time taken by the body to move through a distance of 54m.
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Answer 1

Answer:

Given-

u = 0

Mass = 2kg

Force Applied = 6.0N

distance = 54m

Time Taken = ?

f=ma

6=2×a

a=6/2

=3m/s^2

Now,

s = ut + 1/2at^2

54 = 0t + 1/2×3×t^2

54 = 3t^2/2

108 = 3t^2

108/3 = t^2

36 = t^2

√36 = t

t = 6s (Ans)