Question

A force acting on the body changes it's velocity 10mtre per second to 15metre per second with in 50metre find magnitude of force. Mass of the body is 10kg

Answer 1

2as = v² - u²
2×a×50 = 15² - 10²
100a = 225 - 100
a = 120/100 = 1.25m/s²

F = ma
f = 10×1.25
f = 12.5 Newton