1. You apply a force of 82.0 N to a crate over a distance of 3.00 m.
a. Find the work you do on the crate.
b. Find the work done by the normal force on the crate. Explain.
2. One species of Darwin’s finch, Geospiza magnirostris, can exert a force of 205 N with its beak as it cracks open a Tribulus seed case. If its beak moves through a distance of 0.40 cm during this operation, how much work does the finch do to get the seed?
3. A farmhand pushes a 23-kg bale of hay 3.4 m across the floor of a barn. If she exerts a horizontal force of 86 N on the hay, how much work has she done?