Physics, asked by sahajan2786, 1 year ago

A boy of mass 50 kg running at ms-1 jump on to trolly of 20kg travelling in same direction at 1.5ms-1 .find their common velocity

Answers

Answered by vanshaj21
0
1.25 is the answer
may be
Answered by Anonymous
2
Mass of boy = m1 = 50 kg

Mass of trolley = m2 = 20 kg

Initial velocity of boy = u1 = 5 ms-1

Initial velocity of trolley = u2 = 1.5 ms-1

Final velocity =

v = m1u1 + m2u2 \ m1 + m2

50 × 5 + 20 × 1.5 ÷ 50 + 20

= 4ms-1

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