5. ( ) A professor on a wheelchair is pushed up a rample of angle alpha...
5. ( ) A professor on a wheelchair is pushed up a rample of angle alpha and height 'h' by her students with a horizontal force of F. (A) If the coeffiicient of kinetic friction between the chair and ramp is "uk" (constant), find the velocity of the professor at the end of the ramp. (B) Now assume uk is not constant but uk=Ax. Find again the velocity at the end of the ramp.
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5. ( ) A professor on a wheelchair is pushed up a rample of
angle alpha...
A 2.74 kg block is pushed 1.41 m up a vertical wall with a constant speed...
A 2.74 kg block is pushed 1.41 m up a vertical wall with a
constant speed by a constant force of magnitude F applied at an
angle of 66.3 with the horizontal. The acceleration of gravity is
9.8 m/s2. If the coefficient of kinetic friction between the block
and wall 0.415, find the work done by F.
A 2.74 kg block is pushed 1.41 m up a vertical wall with a constant speed by a constant force of magnitude F...
3) A box of 25 kg is pushed horizontally, with a force of 200 N, up...
3) A box of 25 kg is pushed horizontally, with a force of 200 N, up a 37degrees (with respect to the horizontal) frictionless incline. a) Find the Normal force What is the acceleration of the box? b) Now if friction is present. What value of the coefficient of kinetic friction is necessary such that the box is pushed with constant velocity.
2. A crate is pushed horizontally at an angle of 20° across a rough surface as...
2. A crate is pushed horizontally at an angle of 20° across a rough surface as shown. The mass of the crate is 55 kg and the coefficient of kinetic friction M = 0.35. a) What applied force is required to keep the box moving at a constant acceleration of 3m/s2 ? b) What applied force is needed to keep the box moving at a constant speed, that is, no acceleration? (2 pts.) 3. A 60-kg skier starts from rest...
A 90.0 kg box is pushed by a horizontal force F at constant speed up a...
A 90.0 kg box is pushed by a horizontal force F at constant speed up a frictionless ramp which makes an angle of 43.0 deg with the horizontal. Find the magnitude of the applied force F.
The 52 kg block starting at rest is pushed 7.8 m up a ramp at an...
The 52 kg block starting at rest is pushed 7.8 m up a ramp at an angle θ = 27.0° to the horizontal in 17 s. If the coeficient of kinetic friction is 0.17: a) What is the acceleration of block? m/s/s b) What is the force used to push the block up the ramp? N
A 2.0 kg block is pushed 2.0 m at a constant velocity up a vertical wall by a constant force applied at an angle of 25.0 with the horizontal
A 2.0 kg block is pushed 2.0 m at a constant velocity up a vertical wall by a constant force applied at an angle of 25.0 with the horizontal, as shown in the figure. The acceleration of gravity is 9.81 m/s2.Drawing not to scale. If the coefficient of kinetic friction between the block and the wall is 0.40, find a) the work done by the force on the block. Answer in units of J b) the work done by gravity on the block....
A 6.75 kg block is sent up a ramp inclined at an angle 0 = 33.5°...
A 6.75 kg block is sent up a ramp inclined at an angle 0 = 33.5° from the horizontal. It is given an initial velocity Vo = 15.0 m/s up the ramp. Between the block and the ramp, the coefficient of kinetic friction is uk = 0.397 and the coefficient of static friction is us = 0.712. How far up the ramp in the direction along the ramp does the block go before it comes to a stop? - -...
A 10.0-kg microwave oven is pushed 8.00 m up the sloping surface of a loading ramp...
A 10.0-kg microwave oven is pushed 8.00 m up the sloping surface of a loading ramp inclined at an angle of 36.7 ∘ above the horizontal, by a constant force F⃗ with a magnitude 109 N and acting parallel to the ramp. The coefficient of kinetic friction between the oven and the ramp is 0.259. A-Assuming that the oven is initially at rest, use the acceleration to calculate the oven's speed after the oven has traveled distance 8.00 m ....
Calculus question based on Vector 23 A box is pushed up a 5 foot ramp which makes an angle of 15 degrees with the ground by a constant force of 6 pounds which makes an angle of 45 degrees with the gr...
Calculus question based on Vector
23 A box is pushed up a 5 foot ramp which makes an angle of 15 degrees with the ground by a constant force of 6 pounds which makes an angle of 45 degrees with the ground. Find the work accomplished in pushing the box up the ramp.
23 A box is pushed up a 5 foot ramp which makes an angle of 15 degrees with the ground by a constant force of 6 pounds...
A 6.5 kg block is pushed up a ramp at an angle of 26 degrees above...
A 6.5 kg block is pushed up a ramp at an angle of 26 degrees above horizontal at a velocity of 8.5 m/s. Find the time that it takes for the block to slide back to its original position.
A 2.74 kg block is pushed 1.41 m up a vertical wall with a
constant speed by a constant force of magnitude F applied at an
angle of 66.3 with the horizontal. The acceleration of gravity is
9.8 m/s2. If the coefficient of kinetic friction between the block
and wall 0.415, find the work done by F.
A 2.74 kg block is pushed 1.41 m up a vertical wall with a constant speed by a constant force of magnitude F...
2. A crate is pushed horizontally at an angle of 20° across a rough surface as shown. The mass of the crate is 55 kg and the coefficient of kinetic friction M = 0.35. a) What applied force is required to keep the box moving at a constant acceleration of 3m/s2 ? b) What applied force is needed to keep the box moving at a constant speed, that is, no acceleration? (2 pts.) 3. A 60-kg skier starts from rest...
A 6.75 kg block is sent up a ramp inclined at an angle 0 = 33.5° from the horizontal. It is given an initial velocity Vo = 15.0 m/s up the ramp. Between the block and the ramp, the coefficient of kinetic friction is uk = 0.397 and the coefficient of static friction is us = 0.712. How far up the ramp in the direction along the ramp does the block go before it comes to a stop? - -...
Calculus question based on Vector
23 A box is pushed up a 5 foot ramp which makes an angle of 15 degrees with the ground by a constant force of 6 pounds which makes an angle of 45 degrees with the ground. Find the work accomplished in pushing the box up the ramp.
23 A box is pushed up a 5 foot ramp which makes an angle of 15 degrees with the ground by a constant force of 6 pounds...
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