Question

the car A MASS 1500 KG TRAVELLING AT 25M/S COLLIDS WITH ANOTHER CAR N OF MASS 1000 KG TRAVELLING AT 15M/S IN THE SAME DIRECTION AFTER COLLISION THE VELOCITY OF CAR A BECOME 20M/S CALCULATED THE VELOCITY OF CAR B AFTER COLLISION

Answer 1

m1 = 1500kg

v1 = 25 m/s

m2 = 1000kg

v2 = 40 m/s

v3 = 20 m/s

v4 = ?

m1v1+m2v2 = m1v3+m2v4

(1500×25)+(1000×40) = (1500×20)+ 1000v4

(37500 + 4000) - 30000 = 1000v4

v4 = 11500/1000

v4 = 115/10

v4 = 11.5 m/s

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