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Question

Pritish pulls a load upwards along an inclined road. Which of the following forces he must overcome to pull it up?


  1. Gravitational force
  2. Magnetic force
  3. Electrostatic force
  4. Frictional force


Solution

The correct options are
A Gravitational force
D Frictional force

Gravitational force acts downwards due to Earth's gravity. The force opposing his relative motion along the inclined road is called frictional force. Friction is a contact force. Therefore, he needs to overcome gravitational force and frictional force. 

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