Question

how will you compare the momentum of a sports car moving at 80 kph to the momentum of the same sports car moving at 40 kph? a.Half as much b.Four times as much c.twice as much d.the same momentum

Answer 1

Answer: Momentum of  1st sport  car  moving at 80 km/h

momentum of 2nd sports car moving at 40 km/h= 40 x 5/18= 200/18= 100 /9

momentum 1st car = m x v = m x 200 /9............. i equation

momentum of 2nd car = m x v = m x 100 /9............ ii equation

by dividing  i and ii equation

m x 200/9  /m x 100/9

compare the  both sports car by dividing

the momentum is twice with both car  ans ......

Explanation: