A box is sitting on a 2 m long board at one end. A worker picks...
A box is sitting on a 2 m long board at one end. A worker picks up the board at the end with the box so it makes an angle with the ground of 35o. The coefficient of static friction between the box and the board is 0.5 and the coefficient of kinetic friction is 0.3 . A) Will the box slide down the ramp when it is at 35o? Prove it! B) How long will it take the box to slide to the other end of the ramp? (if it slides)
Homework Answers
A box is sitting on a board. One side of the board is raised until the...
A box is sitting on a board. One side of the board is raised until the box starts sliding. When it starts sliding the angle of the board from horizontal is 36.869898 degree. The board is then held at that angle. The acceleration of the box down the board is 1.96m/s^2. a) What is the coefficient of static friction between the box and the board? (The model for this problem and the answer) b) What is the coefficient of kinetic...
A board Is tipped at an angle of 40 degrees with the horizontal. A box is...
A board Is tipped at an angle of 40 degrees with the horizontal. A box is sitting on the board. If the coefficient of static friction is .3 will the box slide?
A box of mass m = 2.00 kg is positioned on a ramp at an angle...
A box of mass m = 2.00 kg is positioned on a ramp at an angle θ. The length of the ramp (minus the width of the base of the box) is d = 3.00 m. The surface of the ramp has a coefficient of static friction μs = 0.500 and a coefficient of kinetic friction μk = 0.350. The angle θ is slowly increased until the box starts to slide down the ramp. Calculate the angle θmax at which...
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 =...
A box slides down a plank of length d that makes an angle of θ with...
A box slides down a plank of length d that makes an angle of θ with the horizontal as shown. μk is the kinetic coefficient of friction and μs is the static coefficient of friction. Enter an expression for the minimum angle θ (in degrees) the box will begin to slide.
A 9.00 meter long ramp is inclined at an angle of 6.00 above horizontal. A 7...
A 9.00 meter long ramp is inclined at an angle of 6.00 above horizontal. A 7 kg box is given an intial push at the bottom of the ramp so that when it gets to the top it stops. The coefficient of kinetic friction between the box and the ramp is .230 a) what is the initial speed of the box just as it is pushed. (The answer is 7.68 m/s, but I can't seem to set it up properly...
A box of books is initially at rest a distance D = 0.441 m from the...
A box of books is initially at rest a distance D = 0.441 m from the end of a wooden board. The coefficient of static friction between the box and the board is μs = 0.331, and the coefficient of kinetic friction is μk = 0.296. The angle of the board is increased slowly, until the box just begins to slide; then the board is held at this angle. Find the speed of the box as it reaches the end...
A box of books is initially at rest a distance D = 0.493 m from the...
A box of books is initially at rest a distance D = 0.493 m from the end of a wooden board. The coefficient of static friction between the box and the board is μs = 0.357, and the coefficient of kinetic friction is μk = 0.280. The angle of the board is increased slowly, until the box just begins to slide; then the board is held at this angle. Find the speed of the box as it reaches the end...
7: A 60-kg box is placed against a uniform spring with a spring constant (k) of...
7: A 60-kg box is placed against a uniform spring with a spring constant (k) of 3300 N/m The box is pushed to the right so it compresses the spring 25-cm. When the box is released, it is propelled to the left. (a) What is the velocity of the box as it slides along the flat surface to the left after it loses contact with the spring? 350 (b) How far up the ramp will the box slide while coming...
1) Consider a box of mass m sitting on an inclined plane. The inclined plane makes...
1) Consider a box of mass m sitting on an inclined plane. The inclined plane makes an angle θ with the horizontal and the coefficient of static friction between the box and the surface is μ. What minimal condition must exist if the box is to accelerate down the incline? A) mgsinθ < μFn B) mgsinθ = μFn C) mgsinθ > μFn D) mgcosθ > π 2) You observe a packing crate sliding down a long, inclined ramp at constant...
A board Is tipped at an angle of 40 degrees with the horizontal. A box is sitting on the board. If the coefficient of static friction is .3 will the box slide?
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 =...
7: A 60-kg box is placed against a uniform spring with a spring constant (k) of 3300 N/m The box is pushed to the right so it compresses the spring 25-cm. When the box is released, it is propelled to the left. (a) What is the velocity of the box as it slides along the flat surface to the left after it loses contact with the spring? 350 (b) How far up the ramp will the box slide while coming...
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