a box slides down a 30 degree ramp with an acceleration of 1.20 m/s^2. determine the coefficient...

Question

Question

a box slides down a 30 degree ramp with an acceleration of 1.20 m/s^2. determine the coefficient of kinetic friction between the box and the ramp.

Answer 1

Answer #1

a= gsinθ-μgcosθ

1.2 = 9.8sin30 -μ(9.8)cos30

3.7 =μ(9.8)cos30

μ= 3.7/ 9.8cos30 = 0.436 apprx

answered by: invy

Answer 2

Similar Homework Help Questions

A 75 kg box slides down a 25-degree ramp with an acceleration of 3.60 m/s^2

A 75 kg box slides down a 25-degree ramp with an acceleration of 3.60 m/s^2. Find µk (coefficient of kinetic friction) between the box and the ramp.Please provide as much detail in your explanation as possible.
oblem 2: A 5-kg box slides down a ramp. The ramp is l m in length...

oblem 2: A 5-kg box slides down a ramp. The ramp is l m in length and inclined at an angle of 30° as shown. The box starts from rest at the top. The surface friction coefficient is 0.25 1. Use energy methods to determine the speed of the box at the bottom of the ramp 2. How far does the box slide before stopping on the horizontal floor if it continues to experience the same friction coefficient. 1.00 m...
The ramp angle is 30°. Assume m2 slides down the ramp. m Derive the equation for...

The ramp angle is 30°. Assume m2 slides down the ramp. m Derive the equation for the acceleration of the masses if the surface has friction and the masses slide still in the same direction. The coefficient of kinetic friction is uk = 0.20. Under what mass condition is this acceleration equal to g/4?

A box with a mass of 8.67 kg slides up a ramp inclined at an angle...

A box with a mass of 8.67 kg slides up a ramp inclined at an angle of 28.3° with the horizontal. The initial speed is 1.66 m/s and the coefficient of kinetic friction between the block and the ramp is 0.48. Determine the distance the block slides before coming to rest. m As shown in the figure below, a box of mass m = 35.0 kg is sliding along a horizontal frictionless surface at a speed vi = 5.55 m/s...
A m = 10.0 kg box slides down a d = 00 m long ramp that...

A m = 10.0 kg box slides down a d = 00 m long ramp that is raised h = 0 .500 m above the ground (thus the ramp has a θ = 30.0⁰ incline). Assuming the ramp has a coefficient of kinetic friction of µk = 0.200 and the box is initially at rest, what is the final speed of the box when it makes it to the bottom of the ramp? [2.53 m/s] V = 0 d =...
1. A 300 kg piano slides 4.7 m down a 30 degree incline and is kept...

1. A 300 kg piano slides 4.7 m down a 30 degree incline and is kept from accelerating by a man who is pushing back on it parellel to the incline. The effective coefficient of kinetic friction is 0.35. Calculate the force exerted by the man. 2. A box is given a push so it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.25 and the push imparted an initial speed...

7) A box of mass m slides down a ramp, starting at the top. The ramp...

7) A box of mass m slides down a ramp, starting at the top. The ramp has a base of length B and height of H. There is friction between the box and the surface of the ramp. The coefficient of frictions are up and pls. What is the velocity of the box when it reaches the end of the ramp? Can you use conservation of energy to solve this problem, why or why not? What is the work done...
A block slides down a 20 degree incline. The coefficient of kinetic friction between the block...

A block slides down a 20 degree incline. The coefficient of kinetic friction between the block and incline is 0.1. Use g = 10 m/s^2. If the magnitude of the blocks acceleration is 2.5 m/s^2 then find the minimum coefficient between the block and the incline such that the block can remain at rest when placed on the incline.
A block slides down a frictionless ramp, which makes a 30 degree angle to the horizontal...

A block slides down a frictionless ramp, which makes a 30 degree angle to the horizontal floor. The block slides the full 180m all the way down the ramp, where it encounters a flat surface with friction. It slides for 250m before it finally comes to rest. a.) what is the speed at the bottom of the ramp? b.) What is the coefficient of friction on the flat surface? c.) What is the total time the block was in in...

A 5kg box slides down an incline of angle 40 with an unknown coefficient of kinetic...

A 5kg box slides down an incline of angle 40 with an unknown coefficient of kinetic friction. If the box’s acceleration is measured to be 3.58 m/s2 down the slope, what is the value of the unknown coefficient of kinetic friction?