Question

please solve this question ​

Answer 1

Answer:

Mass (m) = 50kg

Initial velocity (u) = 10m/s

Final velocity (v) = 20m/s

Total time taken (t) = 5 seconds

Initial momentum

= mu

= 50 X 10m/s

= 500kgm/s

final momentum

= mv

= 50kg X 20m/s

= 1000kgm/s

Force exerted on the object

= ma

= m(v - u)/t

= 50 X (20 - 10)/5

= 50 X 10/5

= 100N