Question

a football player throws a football 30 meters in 2.5 seconds. what is the speed of the ball? (a) 30 m/s (b) 12 m/s (c) 2.5 m/s (d) 75 m/s

Explanation:

Step1: Recall the formula for speed

The formula for speed \(v\) is \(v=\frac{d}{t}\), where \(d\) is distance and \(t\) is time.

Step2: Substitute the given values

Given \(d = 30\) meters and \(t=2.5\) seconds. Then \(v=\frac{30}{2.5}\).

Step3: Calculate the value

\(\frac{30}{2.5}=\frac{30\times2}{2.5\times2}=\frac{60}{5}=12\) m/s.

Answer:

B. \(12\) m/s