Physics · Mechanics & Work-Energy
It is easier to roll a heavy stone up a slope than to lift it vertically upwards because:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Rolling does not require any force.
- 2The work done against gravity is greater in rolling than in lifting.
- 3Rolling friction is much smaller than sliding friction and vertical lifting requires doing work directly against gravity.✓
- 4Rolling eliminates gravitational force completely.
Correct answer
Rolling friction is much smaller than sliding friction and vertical lifting requires doing work directly against gravity.
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