Table of Contents
How many watts to lift 1kg?
If you can keep lifting a 1 kg weight to a height of 1 meter every second, weight after weight after weight, then you will be steadily producing 10 Watts of power. Your arm would get tired after a while. Let’s slow down. Suppose you move the 1 kilogram weight more slowly so that it takes 2 seconds to lift it 1 meter.
What is the gravitational potential energy of the ball when it reaches its highest point?
Answer: At h = 20.4 m the gravitaional potential energy of the ball reaches maximum.
How do you calculate the power of a machine?
Power is equal to work divided by time. In this example, P = 9000 J /60 s = 150 W .
What is the watt of lift?
The elevator controller uses about 83 watts all the time, even when the elevator is idle. That’s about $130 per year without even moving! Going up uses almost 40 times as much power as going down. Going up 5 floors uses about 500 kilowatt seconds and costs about $0.03.
How many watts is a lift?
The average stair lift draws about 250 watts. This is in line with what’s expected, simply because stair lifts don’t have to accelerate hard, and the force required to lift a 220-pound human 10 feet in the air is about 3 kilojoules. Wattage is simply a measure of the number of joules consumed per second.
What is the potential energy if a body of mass 250 kg is at a height of 30 meter?
Answer: 7500 is the answer of this question….
What energy takes place when a ball hits the ground?
As the ball falls towards the ground, its gravitational potential energy is transformed into kinetic energy. The kinetic energy of an object is the energy it possesses due to its motion.
How to calculate the power of a machine?
Note: No machine can run at 100% efficiency, but such calculations allow for good first estimates to be made. The equation for energy is: Where:J= energy (joules)W= power (watts)t= time (s) To calculate the number of joules used enter the power in watts (W) and a time in seconds (s) then click Calculate: .
Which is the force needed to accelerate a kilogram?
F = 60 N. Newtons are a derived unit, equal to 1 kg-m/s². In other words, a single Newton is equal to the force needed to accelerate one kilogram one meter per second squared.
How to find work done by entering force and distance?
Use our free online work calculator to find the work done by entering the force and distance. Work is the amount of energy transferred by a force and is based on the distance traveled by the object. Use our free online work calculator to find the work done by entering the force and distance.