Question

1. An eagle was sitting on a tree limb 19.5 m above the water spots where a fish is swimming near the surface. Then it starts from the branch and descends toward the water. By adjusting its body in flight, the eagle maintains a constant initial velocity of 3.10 m/s at an angle 20˚ below the horizontal. (a) How long does it take for the eagle to reach the water? (b) How far has the eagle traveled in the horizontal direction when it reaches the fish?

2. A crate of mass m = 62 kg is sliding without friction with an initial velocity of 6.4 m/s along the floor. In an attempt to move it in a different direction, Tom pushes opposite to its initial motion with a constant force of magnitude ?_?? = 81 N, while Jane pushes in a perpendicular direction with a constant force of magnitude ?_?? = 105 N. If they each push for 3 s, in what direction is the crate moving when they stop pushing?

Answer 1