Question

A jogger jogs from one end to the other of a straight track in 1.03 min and then back to the starting point in 1.53 min. What is the jogger's average speed at the following points? (Assume the track is 100 m long.)

Answer 1

To find the average speed at different points, we need to calculate the average speed for each segment of the jogger's run.

To find the average speed for the first segment, we can use the formula: Average Speed = Distance / Time.

The distance jogged in the first segment is half the length of the track, since the jogger is running from one end to the other. Therefore, the distance is 100 m / 2 = 50 m.

The time taken for the first segment is 1.03 min.

So, the average speed for the first segment is: 50 m / 1.03 min = 48.54 m/min.

Similarly, to find the average speed for the second segment (running back to the starting point), we again use the same formula.

The distance jogged in the second segment is also 50 m.

The time taken for the second segment is 1.53 min.

So, the average speed for the second segment is: 50 m / 1.53 min = 32.68 m/min.

Therefore, the jogger's average speed at the halfway point is 48.54 m/min, and the jogger's average speed at the starting/ending point is 32.68 m/min.