Question

a car of mass 150 kg is moving with a speed of, 20 Ms -1 after 25 seconds, the velocity is increased by 10 ms-1, then what is the change in momentum​

Answer 1

Explanation:

An object can have zero displacement even when it has moved a distance and shown some displacement. This takes place when the final position of an object coincides with its own initial position. Let's say, if a person moves around circular area and comes back to the place from where he started then the displacement will be zero. tq follow me and make me as a Branly pizzzzzzzzzzz

Answer 2

Answer:1500 kg m s-1

Explanation:

Mass of body(m)-150 kg

Initial speed(u)-20m s-1

Final speed(v)-20+10=30m s-1

p1=m×u=150×20=3000 kg m s-1(initial momentum)

p2=m×v=150×30=4500 kg m s-1(final momentum)

Change in momentum=p2-p1=4500-3000=1500 kg m s-1. ANS..