The net torce on an object moving with constant speed in circular motion is in which direction?
a) downward
b) opposite to the objects motion
c) towards the center of the circle
d) in the direction of the objects velocity

The correct answer is C) towards the center of the circle.

Although the object is moving at a constant speed it is constantly accelerating due to the constant change in direction as it describes the circular path. This causes a constant change in velocity as velocity is a vector quantity.

For the object to maintain the circular path there has to be centripetal force acting on the object and this centripetal force is directed towards the center of the circle.

no. dot product   =0 when vecs at right angles

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.