Question

Which example best demonstrates how unbalanced forces change the speed of an object's motion? A) A child on a bicycle braking at a stop sign. B) A child singing a song. C) A child sitting in a chair reading a book. Eliminate D) A child walking around the corner of a school hallway.

Answer 1

Answer:

The correct answer is A.

Explanation:

Unbalanced forces change the speed of movement of an object because they act non-uniformly on the object to which they relate. When a child on a bicycle brakes on a stop sign, the brakes act unevenly on the wheel, causing an uneven decrease in speed. In this way, you lose the balance of the movement you had prior to braking.

Have a nice day!

Answer 2

The answer would be A :)