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- 1. Multiple Choice
You put a ball on the end of a string. You swing the ball with a rotation speed of 5.6 m/s. The mass of the ball is 2.0 kg. The length of the string is 1.60 m.
Calculate the centripetal force.
39.2 m/s2
17.9 m/s2
7.00 m/s2
14.0 m/s2
- 2. Multiple ChoiceCalculate 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/s3.6 m/s3.9 m/s4.2 m/s
- 3. Multiple ChoiceCalculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.10 N20 N30 N40 N
- 4. Multiple ChoiceCalculate the mass of an object if it took 20 N to rotate it in a circle with a radius of 2 meters with a velocity of 4 m/s4.1 kg3.6 kg2.5 kg1.8 kg
- 5. Multiple ChoiceA test car moves at a constant speed around a circular track. If the car is 48.2 m from the track's center and has a centripetal acceleration of 8.05 m/s2, what is the car's tangential speed?19.7 m/s5.99 m/s0.17 m/s388.01 m/s
- 6. Multiple Choice
Bruno the bat flies at a speed of 0.5 m/s in circle of radius 1 m. What is his acceleration?0.25 ms-20.5 ms-21 ms-22 ms-2 - 7. Multiple Choice
What's the centripetal acceleration of an object traveling 2.3 m/s around a circle of diameter 0.6 m?
5 m/s2
17.63 m/s2
10 m/s2
8.81 m/s2
- 8. Multiple ChoiceCalculate 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/s3.6 m/s3.9 m/s4.2 m/s
- 9. Multiple Choice
If an object has a centripetal acceleration of 55 m/s2 while traveling in a circle with a radius of 4 m, what is the speed of the object?
14.8 m/s
220 m/s
3.7 m/s
13.8 m/s
- 10. Multiple Choice
If an object is traveling in a circle with a centripetal acceleration of 80 m/s2, what is the radius of the circle if the object is traveling at 12 m/s?
1.8 m
0.15 m
6.7 m
0.14 m
- 11. Multiple Choice
A 30 kg object is traveling in a circle at 50 m/s. If the radius of the circle is 5 m, determine the magnitude of the centripetal force.
15,000 N
16,000 N
17,000 N
18,000 N
- 12. Multiple ChoiceCentripetal acceleration acts ___________ of the circular path.towards the centeralong the circumferenceaway from the centerperpendicular to the plane
- 13. Multiple ChoiceCentripetal acceleration is GREATER when...the radius of the circular motion is decreasedthe radius of the circular motion is increasedthe linear speed is decreased
- 14. Multiple ChoiceIn circular motion, the centripetal force is always directed towards...The centerThe tangentAway from the centerAway from the tangent
- Answer choicesTagsAnswer choicesTags