An example of intentionally increasing friction?

What is magnetic flux? explain faraday's law of induction.

Prompta snowboarder stands at the top of a hill and decides to see if he can increase his speed on his next trip down the slope.describe one thing the snowboarder could do to incrlase his speed on the slope. explain why this would cause his speed toincrease relate one of newton's laws to this problem.

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?