Answer : The average speed of the sprinter is, 34.95 Km/hr
Solution :
Average velocity : It is defined as the distance traveled by the time taken.
Formula used for average velocity :
where,
= average velocity
d = distance traveled = 200 m
t = time taken = 20.6 s
Now put all the given values in the above formula, we get the average velocity of the sprinter.
conversion :
(1 Km = 1000m)
(1 hr = 3600 s)
Therefore, the average speed of the sprinter is, 34.95 Km/hr
Answer:
Explanation:
From the conservation of mechanical energy
Solve to velocity v2
Below are the examples of work being done on an object
Carrying a box up a flight of stairs.
Lifting a bag of groceries.
Lifting a rock off the ground.
Pushing a grocery cart through the store.
<h3>Workdone</h3>
Work is said to be done when a force applied moves a distance
Work done = force × distance
Learn more about work done:
brainly.com/question/18762601
Answer:
1-watt power is defined as the power produced when 1 Joule of work is done for 1 second.
Explanation:
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