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At the instant a traffic light turns green, a car starts from rest with a given constant acceleration 0.5 m/s^2. just as the light turns green, a bus, traveling with a given cinstant speed 16.0 m/s, passes the car. The car speeds up and passes the bus som...

Marie shoots an arrow vertically upward at a sandhill crane (she misses the crane, so you PETA members can relax). If the arrow travels to a maximum height of 99.5 meters, calculate how fast it was shot. And, for how much time was Marie's arrow in the air...

You and your friend are leaning over the edge of the roof of a tall building. At the same instant you throw a baseball straight up with an initial speed vo and your friend throws a marble straight down with the same initial velocity vo. Assume that you ca...

Can a vector have a component equal to zero and still have a nonzero magnitude? Explain.

What is the angle between vector b and the positive x-axis? b = -18.2 x + 6.4 y

The flywheel of a steam engine begins to rotate from rest with a constant angular acceleration of 1.41 rad/s2. It accelerates for 25.5 s, then maintains a constant angular velocity. Calculate the total angle through which the wheel has turned 65.5 s after...

When a wheel of radius R rotates about a fixed axis, do all points on the wheel have 1) The same angular velocity? Explain. 2) The same linear velocity? Explain. If the angular velocity is constant, 3) describe the linear velocities and accelerations (rad...

thank you

so if one component is zero, the other one has to be parallel to the x-axis or y-axis?