Susan is trying to push a
The equation for the force of friction is
You are watching: Can the coefficient of friction be greater than 1
The normal pressure is equal to the mass times acceleration because of gravity, yet in the opposite direction (negative of the force of gravity).
Due to the fact that the trouble tells us that the pressure as a result of friction is
The coreliable of friction has no units.
Mary is trying to push a
The equation for the pressure of friction is
The normal force is equal to the mass times acceleration because of gravity, yet in the opposite direction (negative the pressure of gravity).
Because the difficulty tells us that the coeffective due to friction is equal to
As the pressure because of friction is moving in the OPPOSITE direction to the force Mary will exert, it need to accordingly be labelled as negative.
Report an Error
Example Concern #3 : Understanding Frictional Force
What is the coefficient of kinetic friction on the crate?
The equation for the pressure due to friction is
The problem gives us the mass of the crate, but we have to solve for the acceleration.
Start by finding the initial velocity. The problem gives us distance, final velocity, and adjust in time. We have the right to usage these worths in the equation below to fix for the initial velocity.
Plug in our offered values and settle.
We deserve to use a straight motion equation to fix for the acceleration, making use of the velocity we simply uncovered. We now have actually the distance, time, and initial velocity.
Plug in the given values to settle for acceleration.
Now that we have the acceleration and the mass, we deserve to return to our first equation for pressure.
The normal pressure is the same as the mass times gravity.
See more: Blank Double Ten Frame - Double Ten Frame Template By Works Of Heart
In this format, the masses cancel on both sides of the equation/
Now we have the right to plug in our value for acceleration and also gravity to solve for the coeffective of friction.