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

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

Tags

NGSS.HS-PS2-1

Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.

• 10 N
• 20 N
• 30 N
• 40  N

Tags

NGSS.HS-PS2-1

Calculate 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/s

• 4.1 kg
• 3.6 kg
• 2.5 kg
• 1.8 kg

Tags

NGSS.HS-PS2-1

A 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/s
• 5.99 m/s
• 0.17 m/s
• 388.01 m/s

Tags

NGSS.HS-PS2-1

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^-2
• 0.5 ms^-2
• 1 ms^-2
• 2 ms^-2

Tags

NGSS.HS-PS2-1

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

Tags

NGSS.HS-PS2-1

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

Tags

NGSS.HS-PS2-1

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

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