Question

A boy is walking at 3 m/s He is 25 kg and his back pack is 5kg. What is the boys momentum when carrying the back pack?

90 kg m/s

10 kg m/s

15 kg m/s

75 kg m/s

Answer 1

90 kg m/s

Explanation:

The equation for momentum is

p= mass x velocity

so our velocity is 3 thats is given

the mass must be calculated by adding 25 and 5

this adds to 30

30 x 3 = 90