Work Energy And Power

Step 1: Understand the formula for power.
The power required to keep the conveyor belt running is the rate at which work is done to carry the sand onto the belt. The formula for power is: where is the force required to keep the sand moving at the speed , and is the speed of the conveyor belt. Step 2: Calculate the force.
The force required is the rate at which momentum is transferred to the sand, which is given by: where is the rate at which sand falls and is the speed of the belt. Step 3: Calculate the power.
Substitute the values into the power equation: Thus, the power required to keep the conveyor belt running is between 73.01 and 73.99 W.