Question

the velocity of a body mass 125g changes from 10m/s to 5m/s. Assuming that a constant Force act on it. Find the magnitude of the force​

Answer 1

Force = Mass * Acceleration

And Acceleration = (v-u)/t

Force = Mass * Acceleration

⇒ Force = ma

⇒ Force = m * (v-u)/t

⇒ Force = m *(v-u)/t

⇒ Force = 0.125 x 5 x 5

⇒ Force = 3.125 N

This amount of constant force acts on the body .

Answer 2

Answer:

0.125 N

Explanation:

As Force= Mass x Acceleration

Acceleration= change in velocity/ time taken

                    =5-10/5 = -1 m/s^2

Given weight of body= 125 g = 0.125 kg

Force= 0.125 x -1

          = -0.125 N

So, magnitude of force is 0.125 N.