Question

- A 1250 kg car is stopped at a traffic light. A 3550 kg truck moving at 8.33
m/s hits the car from behind. If bumpers lock, how fast will the two vehicles
move?
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Answer 1

Answer:

Mass of the car (m1) = 1250kg

Initial velocity (u1) = 0

Final velocity (v1) = ?

Mass of the truck (m2) = 3500kg

Initial velocity (u2) = 8.33

Final velocity (v2) = ?

Applying m1u1+m2u2=m1v1+m2v2

1250×0+3500×8.33 = 1250×v1+3500×v2

30405 = 4750v2

v2 = 30405/4750

v2 = 6.4m/s

MARK IT AS BRAINLIEST ANSWER