Question

give me extra questions of force and friction

Answer 1

1.what is the friction?
2.name two ways of reducing friction effects?
3.give an example where friction is useful?
4.in which direction does friction act?

5.what is force?
6.can force be zero?
7.what are the uses of force?
8.what is the si unit of force?
9.solve this-
if  F =4N   a= 2ms-2  then what is 'm'?

1.friction is the force that opposes the motion of an object.
2.lubrication and streamlining
3.car braking system
4.the opposite direction to the way an object is moving.
5.push or pull that can change the state of rest or of uniform motion of an object.
6.can.
7.suspect with hands ,legs(run,push,block)
8.newton
9.2g.