Question

Find the number of meters each record holder ran in one second of each event. Round to the nearest tenth

A) 200 meters, 19.30 seconds, Usain Bolt, Jamaica

B) 400 meters, 43.18 seconds, Michael Jonhson USA

C) 100 meters, 9.69 seconds, Usain Bolt Jamaica

Answer 1

A) Usain Bolt, Jamaica: 10.3 meters per second
B) Michael Johnson, USA: 9.3 meters per second
C) Usain Bolt, Jamaica: 10.3 meters per second

Answer 2

A) 10.4 meters

B) 9.3 meters.

C) 10.3 meters

Explanation:

If an object covered D meters in T seconds,

Then the distance covers by it in 1 second =
`(D)/(T)`

( ∵ Speed = Distance / Time ),

A) Here, D = 200 meters, T = 19.30,

Thus, the distance covered by Usain in one second

`=(200)/(19.30)`

= 10.362694

≈ 10.4 meters,

B) Here, D = 400 meters, T = 43.18 seconds,

Thus, the distance covered by Michael in one second

`=(400)/(43.18)`

= 9.2635

≈ 9.3 meters

C) Here, D = 100 meters, T = 9.69 seconds,

Thus, the distance covered by Usain in one second

`=(100)/(9.69)`

= 10.3199174407

≈ 10.3 meters