Answer:
The distance and average speed are 54.79 m and 10.85 m.
Explanation:
Given that,
Speed = 21.7 m/s
Time = 5.05 s
(a). We need to calculate the distance
Firstly we will find the acceleration
Using equation of motion


Where, v = final velocity
u = initial velocity
t = time
Put the value in the equation


Now, using equation of motion again
For distance,



The distance is 54.79 m.
(b). We need to calculate the average speed during this time

Where, D = total distance
T = time
Put the value into the formula


Hence, The distance and average speed are 54.79 m and 10.85 m.