You are driving a car around a circular track at a constant speed as shown above

Question

You are driving a car around a circular track at a constant speed as shown above. The net force acting on your car Points radially inward, toward the center of the track. Points radially outward, away from the center of the track. Points forward, in the same direction you are moving. Points backward, opposite to the direction you are moving. Is zero. The momentum of your car Points radially inward, toward the center of the track. Points radially outward, away from the center of the track. Points forward, in the same direction you are moving. Points backward, opposite to the direction you are moving. Is zero.

Explanation / Answer

1. The net force on the car is zero. As the friction and the outward centrifugal force balance each other.

2. The momentum of the car points radially inward toward the center of the track. This is due to changing velocity directions. the tangential momentum is zero. but the radial momentum exists.

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