Ahelicopter accelerating upward at 5.9 m/s. when the upward velocity of the helicopter is 40 /s a bullet is fired vertically upward from the chopper. the bullets relative velocity as measured from the helicopter is 13 m/s. how much time does it take for the bullet to strike the helicopter? . also sketch the vertical position vs time graph for both the helicopter and the bullet.

Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

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?