Science
posted by Anonymous .
An elevator lifts a person weighing 625 newtons a distance of 7 meters. If the elevator uses 875 watts of power to lift the person, how long does it take?
Respond to this Question
Similar Questions

physics
an elevator lifts 4 person each with an average mass of 72 kg to a height of of 20 metre in one minute calculate 1 the work done by the lift and 2 the power exerted 
Physics
A person weighing 0.6 kN rides in an elevator that has a downward acceleration of 2.3 m/s^2. The acceleration of gravity is 9.8 m/s^2. What is the magnitude of the force of the elevator ﬂoor on the person? 
Physics
An elevator lifts a total mass of 1.1 x 10^3 kg, a distance of 40 m in 12.5s. How much power does the elevator demonstrate? 
physics
A person stands on a bathroom scale on a motionless elevator. When the elevator begins to move, the scale briefly reads 200 percent of the person's regular weight. Calculate the acceleration of the elevator, a_{elevator}. Use SI units 
physic
an elevator is accelerating downward at 3.5 m/s^2. A person standing inside releases a coin from 2 m above the floor. (a)how long will the coin take to reach the floor? 
Physics Dynamics
A person stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.69 of the person's regular weight. Calculate the magnitude of the acceleration of the elevator. 
Science
An elevator lifts 5 passengers 30 meters in 24 seconds. The power is 15,000w. What is the total weight of the elevator and passengers? 
physics
a 75kg person is standing on a scale in an elevator, the scale gives a readout in newtons(you have to use a free body diagram)determine the reading on the scale in newtons in each of the following situations, when the elevator is not … 
Physics
Searches related to a motor lifts an elevator of mass m at constant speed. The power output of the motor is P and there are no frictional losses so that all the power output from the motor goes into lifting the elevator mass. What … 
Physics
A motor lifts an elevator of mass m at constant speed. The power output of the motor is P and there are no frictional losses so that all the power output from the motor goes into lifting the elevator mass. What is the correct expression …