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Which situation describes a non-contact force changing the speed of an object?(1 point)

Responses

a ball accelerating as it rolls down a hill
a ball accelerating as it rolls down a hill

a gust of wind blowing a leaf away
a gust of wind blowing a leaf away

a bicycle accelerating as the rider pedals more quickly
a bicycle accelerating as the rider pedals more quickly

a drawer opening when a user pulls the handle

2 answers

The situation that describes a non-contact force changing the speed of an object is:

a gust of wind blowing a leaf away.

In this case, the force of the wind acts on the leaf from a distance, causing it to move, which is an example of a non-contact force (specifically, a gravitational or air resistance force). The other options involve contact forces where direct physical interaction occurs.

a ball accelerating as it rolls down a hill