Question

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Question
In which situation is the object experiencing balanced forces?
Responses
A A girl swings on a swing at the playground.A girl swings on a swing at the playground.
B A car brakes as it approaches a traffic light.A car brakes as it approaches a traffic light.
C A sled speeds up as it slides down a snow-covered hill.A sled speeds up as it slides down a snow-covered hill.
D A sky diver reaches terminal velocity when he stops accelerating.

Answer 1

The correct answer is:

**D** A sky diver reaches terminal velocity when he stops accelerating.

In this situation, the forces acting on the sky diver (gravity pulling him down and air resistance pushing up) are balanced, resulting in no further acceleration.