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System shown in the figure is released from rest.Pulley and spring is massless and friction is absent everywhere.The speed of 5kg block when 2kg block leaves the contact with ground is(take spring constant=k=40N/m ang g=10m/s^2) (answer that book gives is 2.828m/s)

System shown in the figure is released from rest.Pulley and spring is massless and friction is absent everywhere.The speed of 5kg block when 2kg block leaves the contact with ground is(take spring constant=k=40N/m ang g=10m/s^2) 
(answer that book gives is 2.828m/s)

Grade:

1 Answers

Ashwit
15 Points
2 years ago
as it is given that system released from rest so kx equals 2g x 0.5m then apply law of conservation of energy for 5 kg block

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