Question

What is the formula of Normal Force ?!!?

Answer 1

How can i find the work done by the normal force?!

Answer 2

normal force is the resultant force that's perpendicular to the wall or ground the object is lying on

Answer 3

work is force times the distance the object travelled, but they both need to be in the same direction

Answer 4

there is no exact formula for normal force, its usually calculated using a free body diagram and trignometry

on a side note, a picture of the question would help us help you a lot better

Answer 5

@completeidiot here;s the picture! How can i find the work done by the normal force here!?

Answer 6

that would be the normal force

since you're given teh mass of the block, you know the force of block due to gravity or weight of the block

now the block is only moving down the ramp

it helps to redefine the coordinate system being used

so now the block is only moving in the x direction
and since the block is not moving in the y direction, that would mean the sum of forces in the y direction must be equal to zero



which means that the normal force is equal to the y component of the force of gravity