kewang497 kewang497

17-08-2021
Physics

contestada

A blue train of mass 50 kg moves at 4 m/s toward a green train of 30 kg initially at rest. The trains collide. After the collision the green train moves with a speed of 3 m/s. What is the final speed of the blue train?

Respuesta :

nurariana08 nurariana08

17-08-2021

Explaination :

Momentum = mass x speed

p = (30 kg) (3 m/s)

p = 90 kg m/s

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