Question

A lorry of mass 12,000kg travelling at a velocity of 2 m/s collides with a stationary car of mass 1500kg. The vehicles move together after the impact. Calculate their velocity.

Answer 1

Answer:

your answer is in the attachment..

Answer 2

Explanation:

From conservation of momentum

Initial momentum = final momentum

m

u

+M

U

=(m+M)

V

1500×25

i

^

+2500×20

j

^

=(1500+2500)

V

V

=9.375

i

^

+12.5

j

^

Final velocity when they stick together is 9.375

i

^

+12.5

j

^