0
What is the power required to lift a 100 N bag of cement 20 m in 10 seconds?
Wiki User
∙ 14y ago
First, calculate the work done. Work is equal to the force on an object multiplied by the distance the object was moved by that force.
W = Fd
Since the bag of cement weighs 100 N, the force required to move it at a constant velocity must equal 100 N (otherwise, it would accelerate). The distance is given as 20m.
W=(100N)(20m)=2000 Nm or 2000 Joules
Next, calculate the power. Power is defined as the work done per time, or work divided by time.
P=W/t
You have already calculated the work (2000 J), and the time is given as 10 seconds.
P=2000J/10s=200 Watts
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is the minimum wattage rating for a motor that is required to lift a 1000 N load a vertical distance of 4 meters in 2 seconds or less?
1 watt = 1 joule/sec; 1 joule = 1 N*m (Newton * meter) 1000 N * 4 m / 2 sec = 2000 N*M/sec = 2000 watts But this is just the power to lift the load and does not take into account any friction or the power required to create the magnetic field in the windings.
How much power is used if the 950 N person lifted 3 meters?
To lift a 950-N load 3 meters requires (950 x 3) = 2,850 joules of energy.The power is the rate at which the energy is delivered. It takes more powerto lift the load faster.The power used to lift this load is (2,850 joules) divided by (the number of seconds it takes),and the unit of the answer is watts.
How many horse power is required to lift a load of 600 pounds 12 feet high in 5 second?
Approx 2.62 hp
What effort is required to lift a 300 kg weight?
On earth, any vertical force greater than 661.39 pounds will lift a mass of 300 kg.
How much work is required to lift a 3.1 kg concrete block to a height of 1.6 m?
48.6
If it takes 3400J to lift a rock onto a ledge what power is required to lift the rock onto the ledge in 4 seconds?
If it takes 3400J to lift a rock onto a ledge, what power is required to lift the rock onto the ledge in 4 seconds Power is energy per unit time. It is measured in watts (joules per second). As such if 3400 joules is transfeered in 4 seconds, the power equals 3400 / 4. The power required is therefore 850 watts.
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.)
How many watts of motor are required for 30 kg material?
If it's to lift 30 kg, it depends how far it is to be lifted and how quickly the lift takes to complete. To lift 30 kg through 10 metres requires 30 x 9.8 x 10 joules of energy, that is 3000 Joules. To do that in 10 seconds needs 300 watts, which would be about half a horse power motor. To do it in 5 seconds the power would be 600 watts - a 1 horse power motor.
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.
How much power is used to lift a piano weighting 1000 newtons 3 meters in 60 seconds?
3000
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 the1 piano and 1 floor in ten seconds?
The answer depends on the mass of the piano and the height of the floor.
How much power does it take to lift 30 N 10 m high in 5 seconds?
600 watts
What is the duration of Hare Lift?
The duration of Hare Lift is 420.0 seconds.
What is the minimum wattage rating for a motor that is required to lift a 1000 N load a vertical distance of 4 meters in 2 seconds or less?
1 watt = 1 joule/sec; 1 joule = 1 N*m (Newton * meter) 1000 N * 4 m / 2 sec = 2000 N*M/sec = 2000 watts But this is just the power to lift the load and does not take into account any friction or the power required to create the magnetic field in the windings.
How much power is required to lift a 2.0 kg mass at a speed of 2.0 ms?
4 watts 39.2 watts
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
