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How do you find the power of an object that lifted a 50 kg crate in 5 seconds?
Sarahmarie92
First you calculate the energy required to lift the object: potential energy = mgh (mass x gravity x height). Note that your problem statement doesn't mention the height - you need that, too. Energy will be in Joule. Then you divide the energy by the time, to get power (in Watt).
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∙ 13y ago
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What is the power expended when a barbell is lifted 2.2m in 2 seconds?
The power during the lift is (weight of the barbell in Newtons)/4.4 watts.Note:Power is not "expended". Energy is. Power is the rate at which energy is expended.
How much power is needed to lift the 200-n object to a height of 4m in 4 seconds?
Power = (energy) / (time) =(200 newtons x 4 meters) / (4 seconds) =200 newton-meters per second = 200 watts
What does m to the second power mean?
m to the second power means multiply m by itself, or m x m.
What is the power of 50 joules in 5 seconds?
Power = energy/time = 50/5 = 10 watts
What is the base of 4 to the power 3?
In the expression 43, 4 is the base and 3 is the exponent.
If it took 5 seconds to lift the crate using a machine what was the power rating of the machine?
We have no way of knowing what power the machine was rated for, but with the information given in the question, we can calculate the power it delivered during the crate-lift: It was (1.96) x (mass of the crate in kilograms) x (distance the crate was lifted in meters) watts.
If a 50 crate was lifted to a height of 10 meters and it took 5 seconds to lift the crate using a machine what was the power rating of the machine?
Please use the formula for gravitational potential energy (PE = mgh) to calculate the energy required. Then divide that by the time to get the power.
An object is lifted 2 m in 5 seconds by a force of 100 N Which of the following statements is correct?
power=40 W
An object is lifted 2 m in 5 seconds by a force of 100 N. Which of the following statements is correct?
Power = 40 W
What is the power rating of a machine to lift a crate in 5 seconds?
That really depends on the weight of the crate. Also, on how high you want to lift it. Calculate the energy required to lift the crate with the formula for gravitational potential energy: PE = mgh (mass x gravity x height) Then divide this by the 5 seconds to get the minimum power required. (The actual power is somewhat larger, for various reasons - the initial acceleration required, and losses due to friction.)
A weight lifter has lifted 150 kg to a height of 2 m. He now lowers it carefully to the floor in 5 seconds. How much power is used Remember the force of an object's weight mass and times gravity.?
588 W
What is the power expended when a barbell is lifted 2.2m in 2 seconds?
The power during the lift is (weight of the barbell in Newtons)/4.4 watts.Note:Power is not "expended". Energy is. Power is the rate at which energy is expended.
Measures weight lifted regardless of time?
measure of weight lifted regardless of time
If it takes 726 watts of power to move an object 36 meters in 14 seconds, what is the mass of the object?
two watts a second
Can the power be increased if the same force acted over 50 seconds?
Yes, if the velocity of the object is increased.
How powerful is crate engine?
Crate engines can provide power to any type of car. A crate engine is very powerful. A crate engine is much more powerful than a regular engine as it produces much more horsepower.
How much power is needed to lift the 200-n object to a height of 4m in 4 seconds?
Power = (energy) / (time) =(200 newtons x 4 meters) / (4 seconds) =200 newton-meters per second = 200 watts
