Chapter SH, Problem 3.4APP

To determine

To Calculate: The net force applied.

Answer to Problem 3.4APP

  $440\text{N}$ (north)

Explanation of Solution

Given:

mass, $m=80\text{kg}$

acceleration, $a=5.5{\text{m/s}}^{\text{2}}$

Formula Used:

From Newton’s second law of motion, the net force would be:

  ${\displaystyle \sum F=ma}$

Here, m is the mass and a is the acceleration.

Calculations:

Substitute the values and solve:

  $\begin{array}{l}{F}_{net}=ma\\ F_{net}=80\times 5.5\\ F_{net}=440\text{N}\text{(north)}\end{array}$

Conclusion:

Thus, the net force applied is 440 N in north direction.