A small marble is launched from bottom of a rough 45º inclined surface with ini…

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Wize University Physics Textbook (Master) > Work and Energy

Work-Energy Theorem

5 Activities

A small marble is launched from bottom of a rough 45º inclined surface with initial velocity of 20
m/s. The kinetic coefficient of friction between the marble and the surface is 0.5. When the marble
returns back to the bottom of the incline again, what is its velocity?

More Work-Energy Theorem Questions:

A small toy car is at the top of a slide (h = 90 cm), waiting to come down and complete a vertical loop of radius R. What is maximum R value so the toy car completes the loop without losing its contact with track?

The Work-Energy Theorem: Friction

A car parked on a 32- degree steep hill loses its traction and starts to come down. It travels 160 meters on the hill until it reaches speed of 72 km/h. What is the kinetic coefficient of friction between the car and the surface?

mechanical energy

If velocity of an object get doubled what happens to the Kinetic energy?

A small toy car is at the top of a slide (h = 90 cm), waiting to come down and complete a vertical loop of radius R. What is maximum R value so the toy car completes the loop without losing its contact with track?