Centripetal Force and Acceleration Quiz

Calculate the centripetal force acting on a 925 kg car as it rounds an unbanked curve with a radius of 75 m at a speed of 22 m/s.

• 6.0x10³ N

• 5.0x10³ N

• 7.0x10³ N

• 8.0x10³ N

A small plane makes a complete circle with a radius of 3282 m in 2.0 min. What is the centripetal acceleration of the plane?

• 9.0 m/s²

• 8.0 m/s²

• 10.0 m/s²

• 11.0 m/s²

A car with a mass of 833 kg rounds an unbanked curve in the road at a speed of 28.0 m/s. If the radius of the curve is 105 m, what is the average centripetal force exerted on the car?

• 6.2x10³ N

• 5.2x10³ N

• 7.2x10³ N

• 8.2x10³ N

An amusement park ride has a radius of 2.8 m. If the time of one revolution of a rider is 0.98 s, what is the speed of the rider?

• 18 m/s

• 16 m/s

• 20 m/s

• 22 m/s

You are riding your bike on a track that forms a vertical circular loop. If the diameter of the loop is 10.0 m, what is the minimum speed required for you to make it around the loop?

• 7.00 m/s

• 5.00 m/s

• 9.00 m/s

• 6.00 m/s

You are swinging a bucket of water in a vertical circle. Assuming that the radius of the rotation of the water is 0.95 m, what is the minimum velocity of the bucket at the top of its swing if the water is not to spill?

• 3.1 m/s

• 2.5 m/s

• 4.0 m/s

• 3.5 m/s

Two students are sitting 1.50 m apart. One student has a mass of 70.0 kg and the other has a mass of 52.0 kg. What is the gravitational force between them?

• 1.08x10^{-7} N

• 2.00x10^{-7} N

• 5.00x10^{-7} N

• 1.50x10^{-7} N

If the gravitational force between two objects of equal mass is 2.30x10^{-8} N when the objects are 10.0 m apart, what is the mass of each object?

• 186 kg

• 200 kg

• 150 kg

• 100 kg

At what distance from Earth’s surface is the acceleration due to gravity 7.33 m/s²?

• 9.97x10^3 m

• 6.37x10^6 m

• 3.43x10^6 m

• 1.00x10^4 m

On the surface of Planet Y, which has a mass of 4.83x10^24 kg, a 30.0 kg object weighs 50.0 N. What is the radius of the planet?

• 1.39x10^7 m

• 6.37x10^6 m

• 3.43x10^6 m

• 9.97x10^3 m