A force acts for 0.5 seconds on an object having mass 1.2kg initially at rest. The force then stops to act but the object moves through 4m in the next 2 sec. Find the magnitude of the force?

Given: u = 0 and m = 1.2kg

To find: Magnitude of force

Here V = \frac{4}{2} = 2m/s.

We know that, v = u + at

=> $2 = 0 + a \times 0.5$

=> a = 4m/s²

We know that,

F = ma

=> $1.2 \times 4  = 4.8N$

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Updated on: 10-Oct-2022

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