Air friction increases the velocity of the sastellite. Explain.

Assertion : As the frictional force increases, the safe velocity limit for taking a turn on an unbanked road also increases. Reason : Banking of roads will increase the value of limiting velocity.

The velocity of fall of a man jumping with a parachute first increases and then becomes constant. Explain.

An increase in the frequency of the incident light increase the velocity with which photoelectron is ejected. Explain how?

Right or wrong ? If wrong , write the correct sentence : Bernoulli's principle states that the pressure of air increases when the velocity of air increases .

Polishing beyond certain limit may increase friction between the surfaces. Explain.

There is a limit beyond which further polishing of a surface increases rather than decreases frictional force. Explain.