Ice Skating!
A figure skater encounters a rough patch. Calculate the length of ice that should be resurfaced.
Moving a Couch!
sebasmurgue2024-02-25T22:35:48-05:00What is the coefficient of static friction between the couch and the floor?
Car Crash!
Two cars collide. Calculate the coefficient of friction between the car and the road.
Curling!
Calculate the kinetic friction coefficient with and without the help of the sweepers.
Ice Block on a Hill!
If all the friction work is dissipated as heat, calculate the fraction of ice that melts.
Library Books!
Draw a free body diagram to describe the forces acting on the books.
Mischief Maker!
How fast does the clay need to move in order to stick to the action figure at the edge of the table?
Pushing a Toy Car!
Find the work done on the toy car.
Snowmobile!
Calculate the tension in the rope that connects the load to the snowmobile
The Box Ghost!
A box begins sliding down a ramp.
True Love!
How much force does Josie need to push Sean up the ramp at a constant velocity?
Like Mother Like Daughter!
A mother keeps her daughter close while skiing for the first time. Calculate the tension in the rope connecting the pair.
Celebrating a Soccer Goal
Jose Mora2024-02-25T20:03:47-05:00A soccer player celebrates a goal by falling to his knees and sliding across the ground. If the mass [...]
Emergency Escape!
Calculate the minimum height of an emergency escape ramp to safely divert a truck with faulty brakes.