Question

A 1500kg car traveling along a road is hit by a 0.1kgrock that creates a small crack in the car’s windshield. Which of the following describes the interaction between the windshield and the rock?a. The car exerts a force on the rock, but the rock does not exert a force on the car. b. The car exerts a force on the rock, and the rock exerts a force on the car. The two forces are not equal in magnitude. c. The car exerts a force on the rock, and the rock exerts a force on the car. The two forces are equal in magnitude.

Answer 1

Answer:

The car exerts a force on the rock, and the rock exerts a force on the car. The two forces are equal in magnitude.

Explanation:

It is given that,

Mass of the car, M = 1500 kg

Mass of the rock, m = 0.1 kg

It is mentioned that a car traveling along a road is hit by a rock that creates a small crack in the car’s windshield. We need to find the correct option that describes the interaction between the windshield and the rock. We know that when one object hits another object, the force applied by object 1 on object 2 have equal and opposite reaction as per the Newton's third law of motion.

So, the car exerts a force on the rock, and the rock exerts a force on the car. The two forces are equal in magnitude. Hence, the correct option is (c).

Answer 2

Answer:

The interaction between the windshield and the rock is described by

c) The car exerts a force on the rock, and the rock exerts a force on the car. The two forces are equal in magnitude.

Explanation:

Forces can be described as an interaction between two objects and always come in pairs.

We have to remember Newton's third law of motion:

If an object 1 exerts a force on object 2, then object 2 should exert a force of equal magnitude but opposite direction on object 1.

So, despite that the car has 1500 kg and the rock 0.1 kg, the force the car exerts on the rock and the force the rock exerts on the car are equal in magnitude.