What is the work done by a crane that lifts a 1,200kg object 30m?

1200 * 9.81 * 30

Thank u Damon for your help

21

To find the work done by a crane, we need to use the equation:

Work = Force × Distance × cos(θ)

In this case, we're given the mass of the object and the distance it is lifted, but we need to first calculate the force applied by the crane.

The force applied by the crane is equal to the weight of the object, which can be calculated using the equation:

Weight = mass × gravity

where gravity is the acceleration due to gravity, which is approximately 9.8 m/s².

So, the force applied by the crane is:

Force = 1,200 kg × 9.8 m/s²

Once we have the force, we can substitute it into the work equation along with the given distance of 30 meters:

Work = (1,200 kg × 9.8 m/s²) × (30 m) × cos(θ)

Since the work done by the crane is independent of the angle, θ, we can assume it to be an angle of 0 degrees, which means cos(θ) = 1.

Therefore, the work done by the crane is:

Work = (1,200 kg × 9.8 m/s²) × (30 m) × 1

Now, we can solve the equation to find the work done.