An electric motor is used to lift a load of bricks through a vertical height of 20m.the tension in the cable attached to the electric motor is 2000N.calculate work done by the electric motor on the bricks
work = force * distance
To calculate the work done by the electric motor on the bricks, we can use the formula:
Work = Force × Distance
In this case, the force is the tension in the cable, which is 2000 N, and the distance is the vertical height through which the bricks are lifted, which is 20 m.
Substituting these values into the formula, we can calculate the work done:
Work = 2000 N × 20 m
Work = 40,000 joules (J)
Therefore, the work done by the electric motor on the bricks is 40,000 joules.
To calculate the work done by the electric motor on the bricks, we can use the equation:
Work = Force x Distance
In this case, the force is the tension in the cable attached to the electric motor, which is given as 2000N. The distance is the vertical height through which the load of bricks is lifted, which is 20m.
Plugging in the values, we get:
Work = 2000N x 20m
Multiplying the force and distance together, we find:
Work = 40,000 Nm
The unit of work is joules (J), so we can also express the final answer as:
Work = 40,000 J
Therefore, the work done by the electric motor on the bricks is 40,000 joules.