Kinetic Friction Practice

You push a 25 kg box across a wooden floor at a constant speed of 1.0 m/s. How much force do you exert on the box?

Mathematical Equivalence

ON

What would happen if the force you exerted on the box doubled, what is the resulting acceleration?

Mathematical Equivalence

ON

A boy exerts 36-N horizontal force as he pulls a 52-N sled across a cement sidewalk at constant speed. What is the coefficient of kinetic friction between the sidewalk and the metal sled?

Mathematical Equivalence

OFF

Suppose the sled runs on packed snow. The coefficient of friction is now only 0.12; If a person weightin 650 N sits on the sled, what force is needed to pull the sled across the snow at constant speed?

Mathematical Equivalence

ON

Consider the doubled force pushing the crate in the example problem. How long would it take for velocity of the crate to double to 2.0 m/s

Mathematical Equivalence

ON