Question

an object ofm= 100 kg accelerate uniformly from 5 m/s to 8 m/s in 6 sec. calculate initial and finalnmomentum of body and also magnitude of the fore​

Answer 1

Answer:

Explanation:

Initial momentum=mass*initial velocity=(100*5)=500kg m/s

Final momentum=mass*final velocity=(100*8)=800 kg m/s

Force=Rate of change of momentum

Force=m(v-u)/t

=100(8-5)/6

=100*3/6=50 N

Answer 2

Answer:

1) Initial momentum =mass × initial V

`` `` = 100×5

`` = 500kg m/s

2) Final momentum = mass × final V

`` `` = 100× 8

`` `` = 800kg m/ s

3) Force = change in momentum/ T

Force = 800-500/6

Force = 50N