Chapter 4, Problem 4STP

To determine

To choose: The correct option.

Answer to Problem 4STP

The correct option is (C), the acceleration is doubled.

Explanation of Solution

Given:

Net force on an object is doubled.

Formula used:

According to Newton’s second law, the force ( F ) acting on an object of mass m and the resulting acceleration a is related as,

  $F=ma$

This implies that force and acceleration are directly proportional to each other.

Calculation:

When the force on the object is doubled, the acceleration will also be doubled as mass remains the same. It can be expressed as,

  $\begin{array}{c}{F}^{\text{'}}=2F\\ =2ma\\ =m\left(2a\right)\end{array}$

Conclusion:

Thus, the correct option representing the change in acceleration when applied force is doubled, is (C).