Calculate the distance travelled by the runner in the 7 s shown.

The above velocity / time graph shows a runner travelling at a constant speed, and then slowing to a stop.Calculate the distance travelled by the runner in the 7 s shown.

A runs 25% faster than B and is able to give him a start of 7 m to end a race in a dead heat. What is the length of the race?

A year 10 student walked 7m due East and thereafter moved 5m due south. She finally completed her journey by moving another 5m due East.i)          Represent this information in a vector diagramii)         Calculate the total distance covered by the studentiii)        Calculate the displacement from the starting point

The speed of a runner increased steadily during the first three seconds of a race. Her speed at half-second intervals is given in the table. Find lower and upper estimates for the distance that she traveled during these three seconds. ft (smaller value) ft (larger value)t (s) 0 0.5 1.0 1.5 2.0 2.5 3.0v (ft/s) 0 6.7 9.2 15.5 17.5 19.8 20.2

Janelle has 66 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the race and walking back the same distance to cool down. If she runs at a speed of 7mph7⁢mph and walks back at a speed of 3mph3⁢mph, how long should she plan to spend walking back?