A girl of mass 50 kg jumps out of a moving boat of mass 300 kg on to the bank with a horizontal velocity of 3 m/ s. With what velocity does the boat begin to move backwards ?
CBSE Class IX Science SA 2 (3 Marks)
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Answered by
7
300 x x = 50 x 3
x = 50x 3 / 300 = 0.5 m /s
x = 50x 3 / 300 = 0.5 m /s
Answered by
8
m₁ = 50 kg, m₂ = 300 kg, v₁ =3m/s, v₂ = ?
m₁v₁ x m₂v₂
v₂ = m₁v₁ / m₂
= --(50 x 3) /300
= 0.5 m/s
The velocity is --0.5 m/s.
m₁v₁ x m₂v₂
v₂ = m₁v₁ / m₂
= --(50 x 3) /300
= 0.5 m/s
The velocity is --0.5 m/s.
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