Question

A box weighing 20 N is pushed to a height of 8 m on a wedge having an angle of 30º. Calculate the amount of work put into the system.

Answer 1

Step-by-step explanation:

The work done (W) is given by the formula:

W=F⋅d⋅cos(θ)

F is the force applied,

d is the displacement,

θ is the angle between the force and the direction of motion.

Therefore;

F=20N,

d=8m,

θ=30 °

Substitute these values into the formula:

W=20N⋅8m⋅cos(30° )

Calculate the result to find the amount of work put into the system.

Answer 2

The work done by the pushing force is equal to the force applied multiplied by the distance moved in the direction of the force. In this case, the force is 20 N and the distance moved is 8 m. So, the amount of work put into the system is 160 N·m.

The work done by the pushing force is equal to the force applied multiplied by the distance moved in the direction of the force. In this case, the force is 20 N and the distance moved is 8 m. Thus, the work done by the pushing force is:

Work = Force × Distance

Work = 20 N × 8 m = 160 N·m

Therefore, the amount of work put into the system is 160 N·m.