centripetal acceleration

Which represents the acceleration of the ball?

• A
• B
• C
• D

Which of the following is the unit for centripetal force?

• J
• m/s²
• kg⋅m/s
• N

Calculate the amount of centripetal force it takes for a softball pitcher to rotate a ball with a velocity of 3 m/s if the ball weighs .12 kg and her arm is .65 meters long.

• .38
• 1.23
• .55
• 1.66 N

Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s².

• 2.4 m/s
• 3.6 m/s
• 3.9 m/s
• 4.2 m/s

Centripetal acceleration acts towards the ___________ of the circular motion

• centre
• circumference