The formula for work done against gravity is straightforward multiplication.
W= F x D (force times distance) and therefore W = m x g x d
The values are m (mass in kg), g (gravity in m/sec2), d (distance raised in meters).
The work is expressed in joules, or kg-m2 / sec2.
W (joules) = (20)(9.81)(.5) = 98.1 joules
Assuming the force doesn't change, and the force and movement are in the same direction, the energy (the joules) is the product of distance and force. Thus, you just need to divide the energy by the distance.
The work done in lifting the object is given by the formula: work = force x distance. To find the force, we use the formula: force = mass x gravity. The force needed to lift a 21 kg object is 21 kg x 9.8 m/s^2 (gravity) = 205.8 N. Therefore, the work done is 205.8 N x 7 m = 1440.6 Joules.
"Newton" and "Joule" were different people, with different names and different spellings, who lived in different countries at different times, investigated different questions, and found different answers. That's a tip-off that the units named for them are completely different things, and can't be converted into each other. 'Newton' is a measure of force. If it pushes through a distance, then (energy) is produced, equal to the product of the number of Newtons multiplied by the distance in meters, and expressed in Joules. If the force pushes against a brick wall and doesn't move through a distance, there are a lot of Newtons there, but the number of Joules of energy produced is zero.
You can use the following theoryIf the resultant force F on an object acts while the object is displaced a distance d, and the force and displacement act parallel to each other, the mechanical work done on the object is the product of F multiplied by d: [3]W = F * d Work=Force*distance,Where work is expressed in joules, force in newtons, and distance in meters.
force times length is the dimension for Work or Energy or Torque. Some examples are Newton meters (equivalent to Joules), inch pounds, foot pounds. The pounds are pounds force, not pounds mass.
The use of force to move an object some distance is called work. Work is calculated by multiplying the force applied to an object by the distance the object moves in the direction of the force. Work is measured in joules.
Is done when a force exerted on an object causes that object to move some distance; equals to force times distance; measured in joules (j)
Assuming the force doesn't change, and the force and movement are in the same direction, the energy (the joules) is the product of distance and force. Thus, you just need to divide the energy by the distance.
The work done to push an object is calculated by multiplying the force applied by the distance over which it is applied. In this case, 100N of force is applied over a distance of 5 meters, resulting in 500 Joules of work done to push the object.
To calculate the distance an object was moved by a force of 50 N given a work of 750 Joules, you can use the formula: Work = Force x Distance Rearranging the formula to solve for distance: Distance = Work / Force Plugging in the values: Distance = 750 Joules / 50 N = 15 meters approximately.
The work done by an object is calculated using the formula: work = force x distance. In this case, the work done would be 60N x 3m = 180 Joules. So, the work done by the object would be 180 Joules.
Work. Work is defined as the product of the force applied to an object and the distance over which the force is applied. Work is typically measured in joules (J).
The work done on an object is equal to the force applied multiplied by the distance over which it is applied. Therefore, to calculate the force, you would divide the work done by the distance. In this case, the force required would be 224 joules / 32 meters = 7 Newtons.
In this case,Work done = Force x Distance ,So, Distance = Work done/force = 720/40 = 15 metres.*Note : If the force tends to slow the object down, then Workdone = -(Force x Distance )
The work of an object is defined as the amount of energy transferred by a force acting on the object as it moves a certain distance in the direction of the force. It is measured in joules and represents the ability of the force to move the object and do work on it.
Work is equal to the amount of force applied to an object multiplied by the distance over which the force is applied. It is a measure of energy transfer that occurs when a force acts on an object in the direction of the force. Work is typically measured in joules.
Work = force x distance moved in the direction of the force, so distance = 675/45 metres = 15 metres