Find whether the net force is zero or not in the following situation. If no find the direction of force :

A) A car drives around a circular path with constant speed.
B) A person push a door to shut.
C) A ball rolling on the ground comes to rest.

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Solution

a) the net force is zero and acts towards the centre of the circle .
b) the net force is zero as when the person applies a force to keep the door shut the door also applies the exact same amount of force on the person in an opposite direction and hence they both cancel each other out and hence the net force become zero
c) the net force is not zero and acts opposite to the direction of motion of the ball

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Similar questions

Q. In which of the following examples, there is zero net force acting on the object ?
I. A car drives around a circular path at a constant speed.
II. A person pushes on a door to hold it shut.
III. A ball, rolling across a field, slowly comes to a stop.

In which of the following statements is a net force of zero acting on the object in question?
A. A car drives around a circular racetrack at a constant speed
B. A person pushes on a door to hold it shut
C. A ball, rolling across a grassy field, slowly comes to a stop

Q. A ball rolling on ground comes to rest by itself after a while. Which force opposes its motion?

Q. Question 4
A batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because
(a) the batsman did not hit the ball hard enough.
(b) velocity is proportional to the force exerted on the ball.
(c) there is a force on the ball opposing the motion.
(d) there is no unbalanced force on the ball, so the ball would want to come to rest.

Q. A car is moving in a circular horizontal track with a constant speed. The centripetal force acting on the car is

75 N

. If the car’s speed is doubled, what is the new centripetal force required for the car to drive on the same circular track?

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Find whether the net force is zero or not in the following situation. If no find the direction of force : A) A car drives around a circular path with constant speed. B) A person push a door to shut. C) A ball rolling on the ground comes to rest.

Find whether the net force is zero or not in the following situation. If no find the direction of force :

A) A car drives around a circular path with constant speed.
B) A person push a door to shut.
C) A ball rolling on the ground comes to rest.