Question

The velocity of a body of mass 125g changes from 10m/s to 5m/s I 5 second. Find the magnitude of the force​

Answer 1

Mass of the body = 125 g = 0.125 kg = 1/8 kg

Final velocity (v) = 5 m/s

Initial velocity (u) = 10 m/s

Time taken (t) = 15 sec

Acceleration = (v-u)/t = (5-10)/15 = -5/15 = -1/3 m/s²

Force = Mass × Acceleration = 1/8kg × -1/3m/s² = -1/24 N = 0.0416 N