Force Physics Example 4

Follow the full solution, then compare it with the other examples linked below.

medium

2.5 \text{ kg}

drone speeds up from

4 \text{ m/s}

10 \text{ m/s}

3 \text{ s}

while flying straight. What net force acts on the drone?

1
Find the acceleration: $a = \frac{\Delta v}{\Delta t} = \frac{10 - 4}{3} = 2 \text{ m/s}^2$
2
Apply Newton's second law: $F_{\text{net}} = ma = 2.5 \times 2 = 5 \text{ N}$

Answer

F_{\text{net}} = 5 \text{ N}

A net force causes a change in velocity. Once the acceleration is known, Newton's second law gives the required force directly.

About Force

A push or pull interaction between two objects that can cause a change in an object's velocity (speed or direction), described as a vector quantity.

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