UNIFORM CIRCULAR MOTION

Convert 5 rad s^-1 into revolution min^-1

• 47.75 rev min^-1

• 67.75 rev min^-1

• 37.75 rev min^-1

• 27.75 rev min^-1

An object moves with speed of 3 ms^-1, and have 3 rads^-1 angular velocity, calculate the radius of the object from the center of circular motion.

• 9 m

• 1 m

• 1.9 m

• 9.1 m

Based on the figure below, which position of the object have centripetal acceleration ?

• A

• C

• B AND D

• A, B, C AND D

Based on the figure below, which position of the object that have centripetal force ?

• A

• A AND C

• B AND D

• A, B, C AND D

An object of 2.5 kg mass is rotated in a vertical circle with radius of 1 meter and at a speed of 5.0 m s^-1. Determine the centripetal force of the object.

• 31.25 N

• 0.1 N

• 62.5 N

• 10.0 N

Based on the figure below, calculate the centripetal acceleration of the object.

• 0.055 ms^-1

• 18 ms^-1

• 6 ms^-1

• 0.17

Calculate the centripetal acceleration

• 7.61 ms^-1

• 0.33 ms^-1

• 2.86 ms^-1

• 17.69 ms^-1

Calculate the centripetal force.

• 0.0989 N

• 2.0989 N

• 989 N

• 89 N