Assuming that f=mu(N), show that the cofficient of (rolling) friction for the car moving down the inclined plane with a...
a) Assuming that f=μN, show that the coefficient of (rolling) friction for the car moving down the inclined plane with a constant speed is gived by μ=m2/mccosθ. Use symbols, not numbers. b)Prove that θ is equal to μk when the blcok sldies down the incline with a constant speed?(use symbols not numbers) b2) if θ is the maximum angle of inlcline justbefore theblcok moves, what is μs in term of θ? c)suppose that the blcok were made to move up...
1. Suppose the car accerlerated up and down the incline. How would this affect the experiemental determinations? 2. Is the assumption justified that f would be the same for both up and down casses for the same constant speed? if not, speculate as to why there is a difference. 3. Assuming that f = uN, show that the coefficient of (rolling) friciton for the car moving down the inclined plane with a constant speed is given by u = tan...
When in the position shown, the 5 kg box is moving down the inclined plane at a speed of 6m/s. What is the maximum force in the spring after the box hits it? The coefficient of kinetic friction between the box and the plane, is meu_k = 0.25, and the spring constant is k = 4 kN/m.
Question about #4
Prove that tan theta is equal to mu_k when the block slides down the incline with a constant speed. (Use symbols, not numbers.) If theta is the maximum angle of incline just before the block moves, what is mu_s, in terms of theta? Suppose that the block were made to move up the inclined plane with a uniform speed by suspending masses on a string over the pulley. Derive an equation for the coefficient of kinetic friction...
Figure 4: Top view of force table. (3) Figure 5 is an inclined-plane system that will be stud- ied in the first part of this experiment. As labelled in the figure, the x (y) direction is parallel (perpendicular) to the inclined plane, and the gravitational acceleration is downward. If the hanging mass m is too small, the block mass M on the inclined plane slides down. When the hanging mass is gradually increased to a lower-bound value mi such that...
A loaded penguin sled weighing 64 N rests on a plane inclined at 20° to the horizontal. Between the sled and the plane the coefficient of static friction is 0.20, and the coefficient of kinetic friction is 0.17. (a) What is the minimum magnitude of the force , parallel to the plane, that will prevent the sled from slipping down the plane? ___N (b) What is the minimum magnitude F that will start the sled moving up the plane? ___...
A loaded penguin sled weighing 80 N rests on a plane inclined at
20° to the horizontal. Between the sled and the plane the
coefficient of static friction is 0.26, and the coefficient of
kinetic friction is 0.17.What is the minimum magnitude of the force F, parallel to the
plane, that will prevent the sled from slipping down the
plane?What is the minimum magnitude F that will start the sled moving up
the plane?What value of F is required to...
1. The figure shows a box with mass m1 on a
frictionless plane inclined at angle ?1. The
box is
connected via a cord of negligible mass to another
box with mass m2 on a frictionless plane
inclined at
angle ?2 (> ?1). The pulley
is frictionless and has
negligible mass and assumes that the setup is on the
surface of the earth.
a) Provide free-body force diagram for both boxes.
b) What is the acceleration in terms of m1,...
A loaded penguin sled weighing 89.0 N rests on a plane inclined at angle θ = 21.0° to the horizontal (see the figure). Between the sled and the plane, the coefficient of static friction is 0.260, and the coefficient of kinetic friction is 0.130. (a) What is the minimum magnitude of the forceF→, parallel to the plane, that will prevent the sled from slipping down the plane? (b) What is the minimum magnitude F that will start the sled moving up the plane? (c) What value of F is required to move the sled up...
You pull on a string with a horizontal force F = 34 N that is
attached to a block of mass mb = 7.1 kg, then to the axle of a
solid cylinder of mass mc = 5.7 kg and radius r = 0.4 m, then to a
spring of spring constant k = 115 N/m. This is all done on an
inclined plane where there is friction ( Us = 0.6 and k = 0.30 ), and the incline...