Ashleey8
contestada

A boy with mass 50kg running at 50m/s homos on a 20 kg trolley traveling at the same direction at 1.5 m/s.What is the common velocity?

Respuesta :

Answer:

The answer is 36.14 m/s

Explanation:

from

m1 ×u1 + m2 × u2 =m1 × v + m2 × v

v = m1 × u1 + m2 + u2/(m1 + m2)

v = 50 ×50 + 20 × 15 /(50 + 70)

v = 2500 + 30/(70)

v = 36.14 m/s

v - is common velocity

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