If an old building still has a single rope to support the cart and several people...
If an old building still has a single rope to support the cart and several people (total mass of 1700 kg) use the elevator, what is the tension on the cable if the elevator decelerates at a rate of 0.6 m/s2 for 3 seconds?
Homework Answers
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If an old building still has a single rope to support the cart
and several people...
QUESTION 24 An elevator of total mass 200 kg is supported by a single cable, as...
QUESTION 24 An elevator of total mass 200 kg is supported by a single cable, as shown in the diagram. What will the tension in the cable be if it accelerates upwards at rate of 2.37 m/s2, in units of newtons? -Cable Elevator QUESTION 25 An object moves in a horizontal circle of radius 2.50 m at a speed of 27.1 m/s. What is the centripetal acceleration of the object, in units of m/s2?
5. An elevator filled with passengers has a mass of 1570 kg a.) The elevator accelerates...
5. An elevator filled with passengers has a mass of 1570 kg a.) The elevator accelerates upward from rest at a rate of 11.2 m/s² for 1.95, Calculate the tension in the cable Supporting the elevator. b.) The elevator continues upward at constant velocity for 5.ls. What is the tension in the cable during this time? TE_ Units c.) The elevator decelerates at a rate of 0.8m/s² for 3.2s. What is the tension in the cable during deceleration ? T=...
A cart of mass M= 15.0 kg is pulled by a rope at 30 degrees angle...
A cart of mass M= 15.0 kg is
pulled by a rope at 30 degrees angle relative to the
horizontal.
The coefficient of frictions is given: µs =0.20 and µk =0.10
3) A cart of mass M- 15.0 kg is pulled by a rope at 30 degrees angle relative to the horizontal The coefficient of frictions is given: μ,-0.20 and μ,-0.10 For all the 3 following parts you must show all force acting on the object. And start the problem...
A cart loaded with bricks has a total mass of 22.1 kg and is pulled at...
A cart loaded with bricks has a total mass of 22.1 kg and is pulled at constant speed by a rope. The rope is inclined at 30.1 ◦ above the horizontal and the cart moves 23.9 m on a horizontal floor. The coefficient of kinetic friction between ground and cart is 0.3 . The acceleration of gravity is 9.8 m/s2 . What is the normal force exerted on the cart by the floor? Answer in units of N. b) How...
) A 2 kg block is attached to a rope. The rope is wound around a...
) A 2 kg block is attached to a rope. The rope is wound around a pulley which has a radius of 0.2 m. You do not know the mass of the pulley, or the geometry of the pulley. The block is released from rest, and you notice it has a speed of 3 m/s after falling 1.5 m. a) What is the angular velocity of the pulley when the speed is 3 m/s? b) Use the fact that energy...
3. You step into an elevator on the 44th floor of a tall office building. Each...
3. You step into an elevator on the 44th floor of a tall office building. Each floor is 3.50 m above the one below it You're alone in the elevator. You select your destination floor , then-as you wait for the door to close-you notice: There is a bathroom scale with a mass of 2.43 kg resting on the elevator floor. (Naturally-why wouldn't there be?) You decide to stand on the scales during the ride. (Naturally-why wouldn't you?) Weight (N)...
One kind of elevator has the elevator car hanging from a cable, which then passes over...
One kind of elevator has the elevator car hanging from a cable,
which then passes over a pulley and connects to a counterweight, as
shown in (Figure 1). The mass of a fully-loaded elevator (that is,
the elevator and all its passengers) is 1850 kg , the mass of the
counterweight is 1500 kg , and the pulley has a radius of 0.4 m
and a mass of 400 kg . A motor drives the motion of the elevator by...
1) A cart for hauling ore out of a gold mine has a mass of 447...
1) A cart for hauling ore out of a gold mine has a mass of 447 kg, including its load. The cart runs along a straight stretch of track that climbs a shallow 4.63∘ incline. A donkey, which is trudging along and to the side of the track, has the unenviable job of pulling the cart up the slope with a 436 N force for a distance of 115 m by means of a rope that is parallel to the...
A laboratory freight elevator, including its load, has a mass of 500 kg. It is prevented...
A laboratory freight elevator,
including its load, has a mass of 500 kg. It is prevented from
rotating by the track and wheels mounted along its sides. The
elevator is used to carry highly sensitive equipment so it cannot
exceed an acceleration of 3 m/s2 . A geared motor is used with the
cable/pulley system shown below to raise and lower the elevator.
The motor turns gear A with a constant angular acceleration, αA.
The gears of the motor have...
A right triangle has hypotenuse 13 cm and one side 7 cm. Find the length of...
A right triangle has hypotenuse 13 cm and one side 7 cm. Find the length of the other side, and the sine, cosine and tangent of each of the other two angles. A man running 4 m/s is passed by a car at 20 m/s, both heading East. What is the velocity of the man relative to the car? How far apart are the 20 seconds after the car passes the man? A ball is thrown vertically upwards from the...
QUESTION 24 An elevator of total mass 200 kg is supported by a single cable, as shown in the diagram. What will the tension in the cable be if it accelerates upwards at rate of 2.37 m/s2, in units of newtons? -Cable Elevator QUESTION 25 An object moves in a horizontal circle of radius 2.50 m at a speed of 27.1 m/s. What is the centripetal acceleration of the object, in units of m/s2?
5. An elevator filled with passengers has a mass of 1570 kg a.) The elevator accelerates upward from rest at a rate of 11.2 m/s² for 1.95, Calculate the tension in the cable Supporting the elevator. b.) The elevator continues upward at constant velocity for 5.ls. What is the tension in the cable during this time? TE_ Units c.) The elevator decelerates at a rate of 0.8m/s² for 3.2s. What is the tension in the cable during deceleration ? T=...
A cart of mass M= 15.0 kg is
pulled by a rope at 30 degrees angle relative to the
horizontal.
The coefficient of frictions is given: µs =0.20 and µk =0.10
3) A cart of mass M- 15.0 kg is pulled by a rope at 30 degrees angle relative to the horizontal The coefficient of frictions is given: μ,-0.20 and μ,-0.10 For all the 3 following parts you must show all force acting on the object. And start the problem...
3. You step into an elevator on the 44th floor of a tall office building. Each floor is 3.50 m above the one below it You're alone in the elevator. You select your destination floor , then-as you wait for the door to close-you notice: There is a bathroom scale with a mass of 2.43 kg resting on the elevator floor. (Naturally-why wouldn't there be?) You decide to stand on the scales during the ride. (Naturally-why wouldn't you?) Weight (N)...
One kind of elevator has the elevator car hanging from a cable,
which then passes over a pulley and connects to a counterweight, as
shown in (Figure 1). The mass of a fully-loaded elevator (that is,
the elevator and all its passengers) is 1850 kg , the mass of the
counterweight is 1500 kg , and the pulley has a radius of 0.4 m
and a mass of 400 kg . A motor drives the motion of the elevator by...
A laboratory freight elevator,
including its load, has a mass of 500 kg. It is prevented from
rotating by the track and wheels mounted along its sides. The
elevator is used to carry highly sensitive equipment so it cannot
exceed an acceleration of 3 m/s2 . A geared motor is used with the
cable/pulley system shown below to raise and lower the elevator.
The motor turns gear A with a constant angular acceleration, αA.
The gears of the motor have...
A right triangle has hypotenuse 13 cm and one side 7 cm. Find the length of the other side, and the sine, cosine and tangent of each of the other two angles. A man running 4 m/s is passed by a car at 20 m/s, both heading East. What is the velocity of the man relative to the car? How far apart are the 20 seconds after the car passes the man? A ball is thrown vertically upwards from the...
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