A race car moving along a circular track has a centripetal acceleration of 12 m/s. If the distance between the car and the center of the track is 40 m, what is the speed
of the car?

The speed of the car is 21.91 m/s

Step-by-step explanation:

Centripetal Acceleration

It's the acceleration experienced by an object in a uniform circular motion.

It always points toward the center of rotation and is perpendicular to the linear velocity v.

The magnitude of the centripetal acceleration is:

Where r is the radius of rotation.

The race car has a centripetal acceleration of and the radius of rotation is r=40 m.

We can calculate the speed of the car by solving the above equation for v:

The speed of the car is 21.91 m/s

answer: -2+√x,-2-√x

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$30.32

step-by-step explanation:

65.00*.12=2.80

65.00-2.80=57.20

57.20*1.06=60.632

60.632/2=30.316