Question

A woman exerts a horizontal force of 10 pounds on a box as she pushes it up a ramp that is 4 feet long and inclined at an angle of 30 degrees above the horizontal.

Find the work done on the box.

Step 1

**Given information:**

The inclination of the ramp (θ) = 30^{0}

The length of the ramp (l) = 4 feet

The force with which the women pushes the block (F) = 10 pounds

Let “m” be the mass of the block

Let “W” be the work done

Step 2

The work done by the women is given by the change in potential energy of the block

Change in potential energy is given by:

Step 3

The work done by women is:

W = m × 32.17 × 2 &...

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