Question

calculate the average speed of "ussain bolt"who sprints 100m in 9.81 sec during 2016 Rio olymppic to win Gold medal.

Answer 1

The average speed of Usain bolt will be 36.7 kmh if he sprints 100m in 9.81 secs.
Thanks

Answer 2

The average speed of Usain Bolt who sprints 100m in 9.81 sec is 10.19 m/sec.

Step-by-step procedure

Given:

Distance traversed= 100m

Time taken = 9.81 sec

To calculate= average speed

Average speed is defined as the total distance travelled in a given span of time.

so, the formula for average speed = distance/ time taken

Result obtained:

Average speed of Usain Bolt= 100m/ 9.81 sec= 10.19 m/sec

Thus, the average speed of Usain Bolt is 10.19 m/sec.