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work is equal to a change in energy. in this case there is a change in potential energy.
potential energy = mass x gravity x height
E(p)=mgh
E(p)= 3x9.8x40
E(p)=1176 J
thus there is a change in potential energy of 1176 joules
and since W=change E(p)
Work done is 1176 J
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∙ 14y ago
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How much work is done when a mass weighing 350 N is lifted 4 meters?
1400j
How much work is done when an object with a mass of 78 kilograms is lifted through a height of 6 meters?
78*6*9.8 N = 4586.4 N
A 10 KG mass is lifted to a height of meters what is its weight?
To get the weight (in Newton), multiply the mass by Earth's gravitation - about 9.8, in SI units.
What is the momentum of a 30 kg cart moving with a speed of 10 meters per second?
The momentum is given by the formula... p=mv p=momentum m=mass v=velocity In your question your mass is 30kg and your velocity is 10m/s just do simple math and your momentum is 300kg*m/s
What units of measurement would you use to measure height and mass?
Meters for height Kilograms for mass.
How much work is done when a mass weighing 350 N is lifted 4 meters?
1400j
If mass is 30kg what does it mass on earth?
If an object has a mass of 30 kg, its mass on Earth would also be 30 kg. Mass is a measure of the amount of matter in an object, and it remains the same regardless of the gravitational force acting on it.
How much work is done when an object with a mass of 78 kilograms is lifted through a height of 6 meters?
78*6*9.8 N = 4586.4 N
An object with a mass of 21kilograms is lifted through a distance of 7 meters How much work is done?
use the formula W = mgs W stands for work done in joules m stands for mass of the object g stands for gravity s stands for the distance the object is lifted W = mgs W = 78kilograms•9.8m/s2•6meters W = 4586.4 J (joules) answer would be 4,586.4 J
How many joules of work are done when a 200 kg box is lifted 5 meters above the floor?
The work done is equal to the change in potential energy, which can be calculated as (mass x gravity x height). Plugging in the values: (200 kg x 9.8 m/s^2 x 5 m) = 9800 J. Therefore, 9800 joules of work are done when the box is lifted 5 meters above the floor.
The work done to lift a 30kg of bricks to a height of 20m is equal to?
Work = Force x DistanceForce = Mass X Gravity (Near earth approximation)SoWork = 30kg x 9.8 m/s2 x 20m = 5880 joules
A 10 KG mass is lifted to a height of meters what is its weight?
To get the weight (in Newton), multiply the mass by Earth's gravitation - about 9.8, in SI units.
An object of mass 4.5 is lifted through a distance of 10m H ow much work is done?
The work done is given by the formula: work = force x distance. Since the force required to lift an object against gravity is equal to its weight (mass x gravity), the work done is 4.5 kg x 9.8 m/s^2 x 10 m = 441 J.
An object with a mass of 21 kilograms is lifted through a distance of 7 meters How much?
question 24 on penn foster is C.
How many joules of work are needed to life a 15 kilogram mass 3 meters off the ground?
The work done to lift the 15 kg mass is 441 J. This can be calculated by multiplying the weight of the object (15 kg * 9.8 m/s^2) by the height lifted (3 m).
How much work will it take to lift a 6kg toolbox 1.5 meters onto a shelf in the garage?
The work done to lift the toolbox is calculated as the force (weight of toolbox) multiplied by the distance it moves (height lifted). In this case, the work done will be 6kg (mass of toolbox) * 9.81 m/s^2 (acceleration due to gravity) * 1.5m (height lifted), which equals 88.29 Joules.
What is the kinetic energy of an object with a mass of 30kg and a velocity of 20 ms?
6,000 J
