Question

plz solve this 3 question

Answer 1

Initial velocity of the object, u = 5 m/s

Final velocity of the object, v = 8 m/s

Mass of the object, m = 100 kg

Time take by the object to accelerate, t = 6 s

Initial momentum = mu = 100 × 5 = 500 kg m s−1

Final momentum = mv = 100 × 8 = 800 kg m s−1

Force exerted on the object, F = mv – mu / t

= m (v-u) / t

= 800 – 500

= 300 / 6

= 50 N

Initial momentum of the object is 500 kg m s−1.

Final momentum of the object is 800 kg m s−1.

Force exerted on the object is 50 N.

Answer 2

hope this help........