Question

The speed of a car weighing 1800kg changes from 36km/h to 54km/h uniformly. What will be the change in momentum of the car?

Select one:

A. 9000kg km/h

B. 32400 g m/s

C. 32400kg m/s

D. 9000kg m/s​

Answer 1

Answer:

A

Explanation:

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Answer 2

Answer

Momentum of car at speed 36km/h=10m/s=m×10

=1500×10

=15000kg m/s

Momentom of car at speed 72km/h=20m/s=m×20

=1500×20

=30000kg m/s

Momentom change=30000−15000=15000kg m/s