Randall D. Knight — Force and Motion: Problem 53

The leaf hopper, champion jumper of the insect world, can jump straight up at \(4 \text{ m/s}\). The jump itself lasts a mere \(1 \text{ ms}\) before the insect is clear of the ground. a. Draw a free-body diagram of this mighty leaper while the jump is taking place. b. While the jump is taking place, is the force of the ground on the leaf hopper greater than, less than, or equal to the force of gravity on the leaf hopper? Explain.