Centripetal Acceleration

Question 1

Juan and Kuri are on a carousel. Juan is closer to the center of the carousel than Kuri. Which statement describes their tangential speeds?

Revolt · Accepted Answer

Juan and Kuri complete one revolution in the same time, but Juan travels a shorter distance and has a lower speed.

Question 2

Which situation during a basketball game involves centripetal acceleration?

Revolt · Accepted Answer

A player spins a basketball on his finger.

Question 3

The tip of a pinwheel is 0.24 m from the center. The pinwheel spins 5 times each second. What is the tangential speed of the tip of the pinwheel?

Revolt · Accepted Answer

7.5 m/s

Question 4

The tip of a fan blade is 0.61 m from the center of the fan. The fan turns at a constant speed and completes 2 rotations every 1.0 s.

Revolt · Accepted Answer

96 m/s2

Question 5

When is an object moving in uniform circular motion?

Revolt · Accepted Answer

when its tangential speed is constant

Question 6

Which is a characteristic of centripetal acceleration?

Revolt · Accepted Answer

It is directed inward, toward the center of a circle.

Question 7

Which expression can be used to calculate centripetal acceleration?

Revolt · Accepted Answer

StartFraction 4 pi squared r over r squared EndFraction

Question 8

The track of a roller coaster is shown below.

Revolt · Accepted Answer

Y

Centripetal Acceleration Answers