Which of the following tools or structures does NOT work on the principle of an inclined plane?

Which of the following tools or structures does NOT work on the principle of an inclined plane?
  1. A winding road going up a hill
  2. A slide in a children's park
  3. A ramp outside a hospital building
  4. A pair of tongs used to pick up hot coal

Solution

A pair of tongs works on the principle of a lever (Class III), whereas winding roads, slides, and ramps are all applications of inclined planes.

Asked in: Homi Bhabha Practice

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