Question

Annie has a soccer ball and a kickball. She kicks each ball with the same force. The soccer ball accelerates at 3 m/s2, and the kickball accelerates at 5 m/s2.

Use Newton’s laws to describe why the kickball has a greater acceleration.

Answer 1

Based on Newton's second law, if the balls are kicked with the same force, the one with less mass will have a greater acceleration. Since the kickball accelerates more than the soccer ball, it has less mass.

Answer 2

The kickball has a greater acceleration because of its less mass.

Explanation:

Acceleration of the soccer ball, $a_1=3\ m/s^2$

Acceleration of the kickball, $a_2=5\ m/s^2$

If she kicks both balls with the same force. The force is given by the product of mass and acceleration of an object.

i.e. F = m a

$m_1a_1=m_2a_2$

If the balls are kicked with the same force, the one with less mass will have a greater acceleration. So, the kickball has a greater acceleration because of its less mass.

Learn more :

Newton's second law of motion

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