Question

3.2.2 quiz: momentum
question 6 of 10
which object will require the greatest amount of force to change its motion?
a. a 162 kg object moving 124 m/s
b. a 160 kg object moving 126 m/s
c. a 153 kg object moving 127 m/s
d. a 148 kg object moving 131 m/s

Explanation:

Step1: Recall the concept of inertia

Inertia is related to mass, and more mass means more resistance to change in motion. Larger - mass objects require more force to change their motion.

Step2: Compare the masses of the objects

We have the following masses: 162 kg (A), 160 kg (B), 153 kg (C), and 148 kg (D).

Step3: Determine the object with the greatest mass

Among 162 kg, 160 kg, 153 kg, and 148 kg, 162 kg is the greatest.

Answer:

A. A 162 kg object moving 124 m/s