Question

The velocity of a body of mass 125g changes from 10m/s to 5m/s in 5second.Assuming that a constant force acts on it, find the magnitude of the force. ​

Answer 1

Hi first of all your question is from physics not from english.

Answer 2

Here,

mass(m)=125g=125/1000kg

initial velocity (u)=10m/s

final velocity (v)=5m/s

time taken (t)=5s

acceleration (a)=v-u/t=5-10/5=-1m/s^2

here,it is Known as retradation,

so,

retradation=-a=-(-1)=1m/s^2

force(f)=m*a=125/1000*1=125/1000=0.125N

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