A5.4 kg bag of groceries is in equilibrium on an incline of angle θ = 15°. find the magnitude of the normal force on the bag

51.2 N

Explanation:

The magnitude of the normal force acting on the bag counterbalances the component of the weight which is perpendicular to the incline, equal to:

where

m = 5.4 kg is the mass of the bag

g = 9.81 m/s^2 is the gravitational acceleration

is the angle of the incline

Substituting the numbers into the formula, we get

And so, the normal force is also equal to 51.2 N.

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.