Question

What is the change in momentum of a car weighing 1500 kg when its speed increases from 36km/h to72km/h uniformly

Answer 1

GIVEN,
         MASS, m                    = 1500 kg
         INITIAL VELOCITY,u  = 36 km/h = 36*5/18 = 10 m/s
         FINAL VELOCITY ,v   = 72 km/h =  72*5/18=  20 m/s
          FORMULA : 
                  CHANGE IN MOMENTUM,p = mv - mu
                                1500*20 - 1500*10
                                 30000 - 15000
                                   = 15000 kg m/s 

Answer 2

this is the answer of your question