Question

A 9.00-kg block of ice, released from rest at the top of a 1.44-m-long frictionless ramp,...

A 9.00-kg block of ice, released from rest at the top of a 1.44-m-long frictionless ramp, slides downhill, reaching a speed of 2.88 m/s at the bottom.   the angle between the ramp and the horizontal is 17.1 degrees.

What would be the speed of the ice at the bottom if the motion were opposed by a constant friction force of 10.8 N parallel to the surface of the ramp?

v=?

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Answer #1

Concept: we use the concept of work energy principle to find out the final speed when there is friction present as shown below

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