(a)
if the coconut weighs 1.5kg, and it is falling at 2m/s,
what is its momentum?

b)
at first the coconut speeds up as it falls. explain why in
terms of the forces acting on it.

(c)
explain what happens to the speed of the coconut
eventually (before it hits the ground) if the tree is very
tall.

What happens when a rubber rod is rubbed with a piece of fur?

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?