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Work, Power and Energy Part 2

Section: Physics

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Question : 8

Total: 42

A bead of mass ' m ' slides without friction on the wall of a vertical circular hoop of radius ' R ' as shown in figure. The bead moves under the combined action of gravity and a massless spring ( k ) attached to the bottom of the hoop. The equilibrium length of the spring is ' R '. If the bead is released from top of the hoop with (negligible) zero initial speed, velocity of bead, when the length of spring becomes ' R ', would be (spring constant is ' k ', g is acceleration due to gravity)

[28 Jan 2025 Shift 1]

√2Rg+‌
4kR2
m
√2Rg+‌
kR2
m
√3Rg+‌
kR2
m
2√gR+‌
kR2
m

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