How much work is done when 30.0kg crate is lifted 15.0m?
work = force * distance.
The force comes from the weight of the crate, equal to the mass of the crate (given as 30.0kg) multiplied by gravitational acceleration, 9.81m/s/s.
You are given the distance, 15.0m.
W = F*d
W = ?
the answer is 450j because work is always a product of displacement and force.
so
w=f*d
w=30.0*15.0
w=450joles
Note to the above response: 30.0kg is not the force.
To calculate the work done, we can use the following formula:
Work = Force × Distance × cos(θ)
In this case, we need to find the force exerted to lift the crate, and then we can calculate the work done. The force can be determined by multiplying the mass of the crate by the acceleration due to gravity:
Force = Mass × Acceleration due to gravity
Force = 30.0 kg × 9.8 m/s²
Force = 294 N
The angle (θ) provided in the question is not specified, but we assume that the crate is being lifted vertically, so the angle between the force and the direction of motion is 0 degrees.
Now we have all the information needed to calculate the work done:
Work = 294 N × 15.0 m × cos(0°)
Work = 4410 J (Joules)
Therefore, the work done to lift the 30.0kg crate over a distance of 15.0m is 4410 Joules.