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- 1. Multiple Choice
An object moving in a circle with constant velocity has ZERO acceleration.
TRUE
FALSE
- 2. Multiple Choice
WHICH STATEMENT IS TRUE?
An object moving in a circle will continue in circular motion when released.
An object in circular motion will fly out radially (curved) when released.
An object moving in circular motion will fly out tangent (straight line) to the circular path when released.
- 3. Multiple Choice
What is the direction of the velocity at Point A, if the ball is revolving clockwise?
Up
Down
Left
Right
- 4. Multiple Choice
What direction is the centripetal force when the rollercoaster is at the top of the loop?
Towards the sky
Towards the Right
Towards the left
Towards the ground
- 5. 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
- 6. Multiple Choice
Calculate the mass of an object if it took 20 N of force to rotate it in a circle with a radius of 2 meters at a velocity of 4 m/s.
4.1 kg3.6 kg2.5 kg1.8 kg - 7. Multiple Choice
If the radius of the string is 0.3 meters long and the stopper takes 0.2 seconds to make a complete circle, what is the velocity of the stopper?
9.4 m/s6.8 m/s11.7 m/s3.5 m/s - 8. Multiple Choice
A 750 kg car is going over the top of a hill with a curvature radius of 3 meters. What is the maximum velocity that the car can travel and still stay on the hill is it's only acceleration is due to gravity?
29.4 m/s
3.27 m/s
5.42 m/s
2.25 m/s
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