Chapter 6, Problem 1P

During a tug-of-war, team A pulls on team B by applying a force of $1100 \text{N}$ to the rope between them. The rope remains parallel to the ground. How much work does team A do if they pull team B toward them a distance of $2.0 \text{m}?$

To determine

The work done by team A to pull team B towards them by a distance of $2.0\text{m}.$

Answer to Problem 1P

  $2200\text{J}$

Explanation of Solution

Given:

The force applied by team A on team B, $F=1100\text{N}$

Formula used:

The work done to move an object by distance d by applying a force F is given by,

  $W=F\cdot d=Fd\cos \theta$

Where $\theta$ is the angle between force and the distance moved.

Calculation:

Using given values in above equation, we get,

  $\begin{array}{c}W=\left(1100\right)\left(2\right)\cos 0°\\ =2200\text{N}\end{array}$

Conclusion:

The work done by team A to pull team B towards them by a distance of $2.0\text{m}$ is $2200\text{J}$ .