Answer:
Time taken by John to complete the dash will be 73.2 seconds
Explanation:
Length of the dash is 200 yards
We will convert this length from yards to feet first.
∵ 1 yard = 3 feet
∴ 200 yards = 3×200
= 600 feet
Since John runs with a speed of 8.2 feet per second then we have to find the time to complete the dash.
Time =

=

= 73.17 seconds
≈ 73.2 seconds
Time taken by John to complete the dash will be 73.2 seconds.