Question

A Define speed

B.State whether speed is a scalar or a vector quantity.

C.The diagram shows an artificial satellite orbiting the Earth. Its or bital speed is constant.

With reference to the velocities of the satellite at points

X and Y, state:

i one similarity

ii one difference

Answer 1

A. Speed is how quickly something moves in a given direction.

B. Speed is a scalar.

C. The velocities above the planet and below are of equal magnitude but opposite direction.