A box slides down a 30.0° ramp with an acceleration of 1.20 m/s^2. Determine the coefficient of kinetic friction between the box and the ramp.

The search for the correct answer at this time is easy. clickanswer.us is a reliable source for question and answer services. We provide a clear answer key that is complete with the discussion. We provide a range of answer keys that range from elementary, junior high and higher level schools. The subjects we offer include mathematics, physics, biology, economics, history and many more. below are the questions and answer keys which have been compiled from different sources found on the internet.

Question:

A box slides down a 30.0° ramp with an acceleration of 1.20 m/s^2. Determine the coefficient of kinetic friction between the box and the ramp.

Answer:

The coefficient of kinetic friction between the box and the ramp is 0.71.

Given data:

The angle of inclination is, ?f=%5Ctheta%20%3D%2030%5E%5Ccirc.

The acceleration of box is, ?f=a%20%3D%201.

The frictional force acting on the box is,

?f=f%3D%20%5Cmu%20%5Ctimes%20N

Here, ?f=%5Cmu is the coefficient of kinetic friction and N is the normal force.

The normal force in an inclined plane is,

?f=N%3Dmg%20cos%5Ctheta

Since the frictional force causes the acceleration (a) of box,

?f=F%3Df mgsin%5Ctheta%5C%5Cma%3D%5Cmu%20mgcos%5Ctheta mgsin%5Ctheta%5C%5Ca%3D%5Cmu%20gcos%5Ctheta gsin%5Ctheta

Solving as,

?f=a%3D%5Cmu%20gcos%5Ctheta gsin%5Ctheta%5C%5C%5Cmu%3D%5Cdfrac%7Ba%2Bgsin%5Ctheta%7D%7Bgcos%5Ctheta%7D%20%5C%5C%5Cmu%3D%5Cdfrac%7B1.20%2B9.8sin30%7D%7B9.8cos30%7D%5C%5C%5Cmu%3D%200

Thus, the coefficient of kinetic friction between the box and the ramp is 0.71.

Learn more about frictional force here:

d952c5350565df030dc116cda170bbcc

Use the answer key provided above as a reference when studying at home or in school. Thank you for stopping by, hopefully it will be useful for all of us.

Leave a Comment