The force from the cable do work on the cab

Assignment Help Physics

Reference no: EM138764

Q1. The loaded cab of an elevator has a mass of 3000 kg and moves 181 m up the shaft in 23 s at constant speed. At what average rate does the force from the cable do work on the cab?

Q2. A mass m = 90 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 18.8 m and finally the flat straight section at the same height as the center of the loop (18.8 m off the ground). Because the mass would not make it around the loop if released from the height of the top of the loop (do you know why?) it must be released above the top of loop-the-loop height.

Reference no: EM138764

Questions Cloud

Price in excess of time : If the demand for gold residue high explain what would happen to the price in excess of time.

What tension is required for a wave : Two packages at UPS start sliding down a ramp 40 degrees from the horizontal, Package A is sliding down in front of Package B. Package A has a mass of 3.50 and a coefficient of kinetic friction of 0.220. Package B has a mass of 8.00 and a coefficient..

What minimum projection angle would achieve this result : An airplane is flying with the velocity of 85.0 m/s at an angle of 20.0 degrees above the horizontal. When the plane is a distance 107 m directly above the dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far..

What is the mass of the sculpture : When one gallon of gasoline is burned in a car engine, 1.18 x 10^8 J of internal energy is released. Suppose that 0.99 x 10^8 J of this energy flows directly into the surroundings (engine block and exhaust system) in the form of heat. If 6.0 x 10^5 J..

The force from the cable do work on the cab : A mass m = 90 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 18.8 m and finally the flat straight section at the same height as the center of the loop (18.8 m off the ground). Because the mass would not..

What would happen to the frequency, speed and wavelength : An automobile club plans to race a 780 kg car at the local racetrack. The car needs to be able to travel around several 170 m radius curves at 85 km/h. What must the banking angle of the curves be so that the force of the pavement on the tires of the..

Conclude the maximum height the frisbee : One side of the roof of a building slopes up at 34.0°. A student throws a Frisbee onto the roof. It strikes with a speed of 15.0 m/s and does not bounce, but slides straight up incline. The coefficient of kinetic friction between plastic and roof is ..

What is the acceleration throughout this period : A 370-kg sailboat has an acceleration of 0.87 m/s2 at an angle of 64° north of east. Find the magnitude and direction of the net force that acts on the sailboat.

Constant speed that characterizes middle portion of motion : Charge is scattered uniformly throughout a long cylindrical shell of inner radius R and out radius 2R. At what radius is the electric field equal to one-half the value on the outer surface.

User Account

All Pages