Physics · Work, Energy and Power
An ideal massless spring S can be compressed 1 m by a force of 100 N in equilibrium. The same spring is placed at the bottom of a frictionless plane inclined at 30° to the horizontal. A 10 kg block M is released from rest at the top of the incline and is brought to rest momentarily after compressing the spring by 2 m. If g = 10 m/s2, what is the speed of the mass just before it touches the spring?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1√20 m/s✓
- 2√30 m/s
- 3√10 m/s
- 4√40 m/s
Correct answer
√20 m/s
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