Answer:
(a) 41.75m/s
(b) 4.26s
Explanation:
Let:
Distance, D = 89m
Gravity, = 9.8 m/
Initial Velocity, = 0m/s
Final Velocity, = ?
Time Taken, = ?
With the distance formula, which is
D = +
and by substituting what we already know, we have:
89 = ×9.8×
With the equation above, we can solve for :
Now that we have solved , we can use the following velocity formula to solve for :
, where is also equals to , so we have
By substituting , , and ,
We have:
I believe the answer is true
Answer:
941.2 (rounded from 941.17647) kilometers per hour.
Explanation:
To find the average speed of something all you have to do is divide the distance by the time, so 8,000 divided by 8.5. (You can divide the answer by 60 if you need to have the average speed per minute.)
Many carb up before running as its important to have sugars fuel you for a day of perspiring and harsh exercise. Without eating you would run out of energy much quicker and be unable to preform with the same amount of energy you would have with fuel.