2D Kinematics Test Retake

Elijah, Ava, and Rohan are studying physics together. They are discussing the forces acting on a car moving in a circular track. What is the formula they would use to calculate the centripetal force acting on the car?

What is the centripetal force required to keep a car with a mass of 1500 kg moving in a circular path with a radius of 20 meters at a speed of 15 m/s?

Charlie is driving his car on a circular racetrack with a radius of 10 meters. If Charlie's velocity is 60 m/s, what other variable do we need to calculate the centripetal force acting on Charlie's car?

• Radius

• Velocity

• Acceleration

• Mass

• Circular

• Straight Line

• Hyperbola

• Parabola

Liam throws a stone vertically upwards with an initial velocity of 20 m/s from the edge of a cliff while Aria and Oliver watch. How long will it take for the stone to reach its maximum height?

• 1.02 s

• 2.04 s

• 4.08 s

• 9.81 s

A child with a mass of 30 kg is riding a swing in a circular motion with a radius of 3 meters at a speed of 2 m/s. What is the minimum centripetal force required to keep the child on the swing?

Jackson, Mark, and Priya are studying physics together. They are discussing the motion of a car moving in a circular track. They want to calculate the car's centripetal acceleration. What formula should they use?

Charlie is driving his car in a circular race track with a radius of 5 meters. If Charlie's car velocity is 10 m/s, what is the centripetal acceleration of his car?