Answer
In the 100-m race, an athlete started running at the start line by speeding up to his maximum speed. He reached his maximum speed of 30 m/s after 5 seconds. He runs at this speed for extra 4 seconds to the end of the race.
He finished his race in 9 seconds only which seems to be a great record.
Work Step by Step
In the 100-m race, an athlete started running at the start line by speeding up to his maximum speed. He reached his maximum speed of 30 m/s after 5 seconds. He runs at this speed for extra 4 seconds to the end of the race.
He finished his race in 9 seconds only which seems to be a great record.
