1 joule = 1 newton-meter 800 joules = 800 newton-meters = (200 newtons) x ('H' meters) H = 800 N-m / 200 N = 4 meters
The idea here is to multiply the force by the distance.
4
2,088 J
The work done to lift the box is equal to the gravitational potential energy gained by the box, given by W = mgh, where W is the work done, m is the mass, g is the acceleration due to gravity, and h is the height. Therefore, 800 J = 200 N * g * h. Solving for h, we find h = 4 meters.
The work done is equal to the change in potential energy, which is (m \cdot g \cdot h), where (m = 200) N and (w = 800) J. Solving for (h), we get: [800 = 200 \times 9.81 \times h] [h = \frac{800}{200 \times 9.81} = 0.408 , \text{meters high}].
0 / 200 = 0 meters.
The idea here is to multiply the force by the distance.
4
The height of the shelf can be calculated using the formula: work done = force x distance. In this case, the work done is 40 J, the force is 10 N, so the distance (height of the shelf) can be calculated as 40 J / 10 N = 4 meters.
2,088 J
The work done to lift the box is equal to the gravitational potential energy gained by the box, given by W = mgh, where W is the work done, m is the mass, g is the acceleration due to gravity, and h is the height. Therefore, 800 J = 200 N * g * h. Solving for h, we find h = 4 meters.
The work done is equal to the change in potential energy, which is (m \cdot g \cdot h), where (m = 200) N and (w = 800) J. Solving for (h), we get: [800 = 200 \times 9.81 \times h] [h = \frac{800}{200 \times 9.81} = 0.408 , \text{meters high}].
If you performed 40 joules of work lifting a 10 N box, and assuming the work done is equal to the gravitational potential energy gained by the box, you can calculate the height of the shelf using the formula for gravitational potential energy: PE = mgh, where PE is the potential energy (40 J), m is the mass of the box (m = 10 N/g ≈ 1.02 kg), g is the acceleration due to gravity (9.81 m/s^2), and h is the height. Solving for h, you can find the height of the shelf.
Joules are a unit of energy. One joule is equal to the work done by a force of one newton acting over a distance of one meter.
(14 N x 6 m) = 84 newton-meters = 84 joules
The work done can be calculated using the formula: Work = force x distance. In this case, Work = 20 N x 5 m = 100 joules. Therefore, 100 joules of work are done when a 20 newton box is lifted 5 meters off the floor.
The work done in lifting the refrigerator can be calculated by multiplying the force applied (700 N) by the distance traveled (4 meters). Therefore, the work done would be 700 N * 4 meters = 2800 joules.