Question

A force acts body of mass 400
g. The velocity of changes from 20 m/s to 30 m/ s in 2.5 seconds
Assuming force constant. find the magnitude of force. the to ind the​

Answer 1

a = ∆t.∆v

= 2.525 - 15 = 4m/s

4 - 2F = ma

then ,

F = 0.4*2 = 0.8 N