Question

A trash can slides on a level floor after being pushed by an unhappy student. It slows and comes to a stop with a constant acceleration of -2.4m/s2. What is the coefficient of kinetic friction between the trash can and the floor

Answer 1

Answer:

Explanation:

Given:

Acceleration, a = -2.4 m/s^2

Acceleration due to gravity, g = 9.8 m/s^2

Sum of forces = 0

Fr + F = 0

Fr = µsl × m × g

Since, Fn = m × g

m × a = (- µsl × mg)

µsl = -a/g

= 2.4/9.8

= 0.245