Question

1. A car travels in a circle with constant speed. Which of the following is true?
A. The net force on the car is zero because the car is not accelerating.
B. The net force on the car is directed forward, in the direction of travel.
C. The net force on the car is directed inward, toward the center of the curve.
D. The net force on the car is directed outward, away from the center of the curve.

Answer 1

Answer:

The net force of the car is directed forward, In the direction of travel

Answer 2

If a car travels in a circle with constant speed, then the net force on the car is directed inward, toward the center of the curve.

Answer: Option C

Explanation:

As the car is travelling in a circle with constant speed that means the car is moving in uniform circular motion. And any object moving in uniform circular motion is tend to exhibit acceleration and net force. The magnitude of acceleration and net force will be same as the speed will be constant in uniform circle motion.

But the speed's direction or the velocity will differ in each point of the circumference of the circular path. Thus as the net forces will be varying according to the Newton’s second law of motions, the direction of net force in a uniform circular motion will be directed inward and toward the center of the circle.