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Force practice problems
Practice Problems

New Problems reloads the page with new variable values in all questions. You must do this after grading the test to rework it another time.
Make sure to enter your answers in the specified units .
A 1350 kg car traveling at m/s spots a police car up ahead and slows to m/s in s . What is the force exerted on the car by the breaks?

After passing the police car the driver accerates back to his original speed in s. What is the force exerted on the car by the tires?

A book with a mass of kg is setting on a desk that is at an angle of degrees. What is the force of friction holding the book in place?

What is the normal force on the book?

A child pulls rope attached to a kg frictionless wagon with a force of at an angle of . What is the acceleration of the wagon?

Once you have submitted your answers for grading by clicking the grade button, you cannot resubmit answers for the same Problem Set--you must use the 'New Problems' button first.
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Constants Conversions calculator