A 13.61 N force acts on a mass accelerating it across a frictionless floor at 4.27...
A 13.61 N force acts on a mass accelerating it across a frictionless floor at 4.27 m/s2. The same force applied to the same mass will cause what acceleration across of floor whose coefficient of friction is 0.22?
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A 13.61 N force acts on a mass accelerating it across a
frictionless floor at 4.27...
A 3.10-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic...
A 3.10-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.460. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator is stationary. N (b) The elevator is accelerating upward with an acceleration whose magnitude is 2.30 m/s2. N (c) The elevator is accelerating downward with an acceleration whose magnitude is 2.30 m/s2. N
A 2.00-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic...
A 2.00-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.440. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator is stationary. N (b) The elevator is accelerating upward with an acceleration whose magnitude is 2.00 m/s2. N (c) The elevator is accelerating downward with an acceleration whose magnitude is 2.00 m/s2. N
A 2.40-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic...
A 2.40-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.480. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator is stationary. N (b) The elevator is accelerating upward with an acceleration whose magnitude is 1.20 m/s2. N (c) The elevator is accelerating downward with an acceleration whose magnitude is 1.20 m/s2.
1. A force acts on a 2 kg mass and gives it an acceleration of 3...
1. A force acts on a 2 kg mass and gives it an acceleration of 3 m/s2. What acceleration is produced by the same force when acting on a mass of: a) 1 kg (ans = 6) 2. A horizontal force of 200 N is required to cause a 15 kg block to slide up a 20 degree incline with an acceleration of 0.25 m/s2. Find: a) the friction force on the block (ans = 134 N) b) the coefficient...
A mop is pushed across the floor with a force of 50 N at an angle...
A mop is pushed across the floor with a force of 50 N at an
angle of 50� (figure below). The mass of the mop head is 2.42 kg.
Calculate the acceleration of the mop head if the coefficient of
kinetic friction between the head and the floor is 0.400.
Answer_______ m/s2
The figure below shows an initially stationary block of mass m on a floor. A force...
The figure below shows an initially stationary block of mass
m on a floor. A force of magnitude F =
0.550mg is then applied at upward angle θ =
23°.
(a) What is the magnitude of the acceleration of the block
across the floor if the friction coefficients are
μs = 0.590 and
μk = 0.495?
m/s2
(b) What is the magnitude of the acceleration of the block across
the floor if the friction coefficients are
μs = 0.395 and...
A 1300 N crate is being pushed across a level floor at a constant speed by...
A 1300 N crate is being pushed across a level floor at a constant speed by a force F of 400 N at an angle of 20° below the horizontal as shown in Figure P4.37a. NI (a) Figure P4.37 (a) What is the coefficient of kinetic friction between the crate and the floor? (b) If the 400 N force is instead pulling the block at an angle of 20° above the horizontal as shown in Figure P4.37b, what will be...
A 1,440-N crate is being pushed across a level floor at a constant speed by a...
A 1,440-N crate is being pushed across a level floor at a constant speed by a force F of 280 N at an angle of 20.0 degrees below the horizontal. a.) What is the coefficient of kinetic friction between the crate and the floor? (Enter your answer to at least three decimal places.) b.) If the 280-N force is instead pulling the block at an angle of 20.0 degrees ABOVE the horizontal, what will be the acceleration of the crate?...
A 1,380-N crate is being pushed across a level floor at a constant speed by a...
A 1,380-N crate is being pushed across a level floor at a constant speed by a force F of 330 N at an angle of 20.0° below the horizontal, as shown in the figure a below. 20.0 120.0 (a) What is the coefficient of kinetic friction between the crate and the floor? (Enter your answer to at least three decimal places.) (b) If the 330-N force is instead pulling the block at an angle of 20.0° above the horizontal, as...
A 1,060-N crate is being pushed across a level floor at a constant speed by a...
A 1,060-N crate is being pushed across a level floor at a
constant speed by a force
F
of 200 N at an angle of 20.0° below the horizontal, as shown in
the figure a below.
(a) What is the coefficient of kinetic friction between the
crate and the floor? (Enter your answer to at least three decimal
places.)
(b) If the 200-N force is instead pulling the block at an angle of
20.0° above the horizontal, as shown in...
A mop is pushed across the floor with a force of 50 N at an
angle of 50� (figure below). The mass of the mop head is 2.42 kg.
Calculate the acceleration of the mop head if the coefficient of
kinetic friction between the head and the floor is 0.400.
Answer_______ m/s2
The figure below shows an initially stationary block of mass
m on a floor. A force of magnitude F =
0.550mg is then applied at upward angle θ =
23°.
(a) What is the magnitude of the acceleration of the block
across the floor if the friction coefficients are
μs = 0.590 and
μk = 0.495?
m/s2
(b) What is the magnitude of the acceleration of the block across
the floor if the friction coefficients are
μs = 0.395 and...
A 1300 N crate is being pushed across a level floor at a constant speed by a force F of 400 N at an angle of 20° below the horizontal as shown in Figure P4.37a. NI (a) Figure P4.37 (a) What is the coefficient of kinetic friction between the crate and the floor? (b) If the 400 N force is instead pulling the block at an angle of 20° above the horizontal as shown in Figure P4.37b, what will be...
A 1,380-N crate is being pushed across a level floor at a constant speed by a force F of 330 N at an angle of 20.0° below the horizontal, as shown in the figure a below. 20.0 120.0 (a) What is the coefficient of kinetic friction between the crate and the floor? (Enter your answer to at least three decimal places.) (b) If the 330-N force is instead pulling the block at an angle of 20.0° above the horizontal, as...
A 1,060-N crate is being pushed across a level floor at a
constant speed by a force
F
of 200 N at an angle of 20.0° below the horizontal, as shown in
the figure a below.
(a) What is the coefficient of kinetic friction between the
crate and the floor? (Enter your answer to at least three decimal
places.)
(b) If the 200-N force is instead pulling the block at an angle of
20.0° above the horizontal, as shown in...
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