Question

An object of mass 100 Kg is accelerated uniformly from a velocity of 4m/s to 8 m/s in 2
seconds calculate the initial and final momentum​

Answer 1

Answer:

50 N

Explanation:

Initial momentum = 100 kg x 5 m/s = 500 kg m/s

Final momentum = 100 kg x 8 m/s = 800 kg m/s

Change in momentum = 800 - 500 = 300 kg m/s

Force exerted = change in momentum/time = 300 kg m/s / 6 s = 50 kg m/s2 = 50 N

Answer 2

Answer:

Hello,

Explanation:

Initial momentum = 100 kg x 4 m/s = 400 kg m/s

Final momentum = 100 kg x 8 m/s = 800 kg m/s

Change in momentum = 800 - 400 = 400 kg m/s

Force exerted = change in momentum/time = 400 kg m/s / 2 s = 200 kg m/s2

                                                                                                            =200N

hope this helps u