Question

Find change in momentum of a car weighing 1500 kg when its speed increases from 36km/h to 72km/h​

Answer 1

Explanation:

p = m * (v-u)

p = mv-mu using this formula

firstly 36 convert into m/s

36*5/18= 10m/s

again 72*5/18= 20 m/s.

put value

p= mv-mu

p= 1500*20-1500*10

p= 30000- 15000

p= 15000 kgm/s