science
Grade-7
Easy

Question

A skydiver jumps from a helicopter. What are the forces acting on her?

  1. Only gravitational force
  2. Only air resistance
  3. Gravitational force and air resistance
  4. Centripetal force

hintHint:

There are 2 forces acting on a skydiver.

The correct answer is: Gravitational force and air resistance


    • There are 2 forces acting on her. Gravitational force which pulls down and air resistance which acts on opposite direction of the motion.
    • So, the correct option is c.

    • The net force and the acceleration on the falling skydiver is upward.
    • An upward net force on a downward falling object would cause that object to slow down.
    • The skydiver thus slows down.
    • As the speed decreases, the amount of air resistance also decreases.

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