Question

A force applied on a body of mass 100kg at rest for 5 sec cayses it to move through distance if 100m. Calculate force aplied

Answer 1

We Know that,

F=ma

We have mass of the body = 100kg but we do not have acceleration:-

So, In order to find acceleration, we will the Second Equation Of Motion:-

S=ut+1/2at²

100m = (0x5) + 1/2 x a x (5s)²

100 m = 1/2 x a x 25 sec²

100m = a x 12.5 sec²

(100/12.5)m/s² = a

∴ a = 8 m/s²

Now, In order to find Force we will proceed:-

F= ma

F= (100x8) kg m/s²

F= 800 kg m/s²

∴ F = 800 N

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Answer 2

Explanation:

A force applied on 100 kg mass at rest for 5 seconds after that the body moves to the distance of 100 m. Find the force applied