Which of the following is true about centripetal force? check all that apply.
a. without centripetal force, an object would continue in a straight
line.
b. it's also called an outward force.
c. gravity can be a centripetal force, such as when it pulls a thrown
baseball down to the ground.
d. friction can be a centripetal force, such as when it keeps a car on
the road going around a curve.
e. it's the same as centrifugal force.

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The answer option which is true about centripetal force includes the following:

A. Without centripetal force, an object would continue in a straight  line.

C. Gravity can be a centripetal force, such as when it pulls a thrown  baseball down to the ground.

D. Friction can be a centripetal force, such as when it keeps a car on  the road going around a curve.

A centripetal force can be defined as a net force that causes a physical body or an object to experience a uniform circular motion while moving through a curved path.

Hence, a centripetal force is a net force that causes a change in the direction of velocity towards the center of curvature or axis of rotation of a uniform circular motion.  

The following statements are true about the centripetal force experienced by an object:

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The following statements are true about centripetal force :

Option A, C, and D

Explanation:

Centripetal Force & Examples-

Centripetal force can be defined as the component of force that acts on an object in a curvilinear motion, directed towards the centre of axis of the circular path. This is the force responsible to pull an object in an inward direction and balance the pace on the path.

In the absence of the centripetal force, an object will either move in the direction of motion or on a straight path instead of moving inwards. It's also called as an "inward Force" as it tends to move the object towards the centre of the curved path.

As an example, a car moving on a circular road accelerates due to its constant change in direction since it's moving on a circular path. Now, the frictional force comes into picture that contributes its component as a centripetal force, pulling it towards the centre of the axis of the circular path.

Hence we can say that when a car turns on a circular path, friction force acts a centripetal force to maintain its motion and direction on the path. Talking about a baseball which is attracted by the gravitational force of the Earth and hence falls on the ground is clearly not the case of centripetal force as the path may not be circular every time and there is not axis of rotation.

Besides centripetal force, there is another force that acts on an object moving on a circular path but not in the inward direction. It is instead, equal and opposite of the centripetal force that draws the object away from the circular path of motion. Hence, it's called the "Outward force".

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