Final answer:
The net work required to stop a crate can be found using the equation: Net Work = Change in Kinetic Energy.
Step-by-step explanation:
The net work required to stop a crate can be found using the equation:
Net Work = Change in Kinetic Energy
Change in Kinetic Energy = Final Kinetic Energy - Initial Kinetic Energy
Since the crate is coming to a stop, its final kinetic energy is zero. The initial kinetic energy can be calculated using the formula:
Kinetic Energy = 0.5 * mass * velocity^2
Plugging in the values, we get:
Initial Kinetic Energy = 0.5 * 84.4 kg * (1.81 m/s)^2
Therefore, the net work required to stop the crate is equal to the initial kinetic energy and is given by:
Net Work = 0.5 * 84.4 kg * (1.81 m/s)^2