Question

1. what is the velocity of a ball if rolls downhill for 25 km in 50 minutes?

.5 km/min
75 km/min
1,250 km/min

Explanation:

Step1: Recall the velocity formula

Velocity \(v=\frac{d}{t}\), where \(d\) is distance and \(t\) is time. Here, \(d = 25\) km and \(t=50\) min.

Step2: Substitute values into the formula

\(v=\frac{25}{50}\) km/min.

Step3: Simplify the fraction

\(\frac{25}{50}=\frac{25\div25}{50\div25}=\frac{1}{2}=0.5\) km/min.

Answer:

0.5 km/min