Question

a man swims in pool of width 300m. he covers 600m in 10 minutes by swimming from one end to other, and back along the same path. find average speed and average velocity of the man for the entire journey.
plz answer fast...........​

Answer 1

Answer:

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Explanation:

In geometry, Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a triangle when the length of all three sides are known. Unlike other triangle area formulae, there is no need to calculate angles or other distances in the triangle first.......

Answer 2

$\huge\bold\color{orange}{Question}$

a man swims in pool of width 300m. he covers 600m in 10 minutes by swimming from one end to other, and back along the same path. find average speed and average velocity of the man for the entire journey.

$\huge\bold\color{orange}{Answer}$

Average velocity of the man = 0 m/s

Average speed of the man = 1 m/s

$\huge\fbox{Explanation}$

$\sf\color{green}{Given:}$

Width of the pool = 300 m

Distance covered by the man in swimming from one end to other and back along the same path = 600 m

Time taken to cover 600 m = 10 min

$\sf\color{green}{To find:-}$

Average speed and velocity of the man for the entire journey =?

$\sf\color{green}{Formula required:}$-

Formula for average velocity

Average velocity = total displacement / total time taken

Formula for average speed

Average speed = total distance covered / total time taken

$\sf\color{red}{Solution:}$

On swimming from one end of the pool to the other, and returning back along the same path

total displacement = zero

total distance covered = 600 m  (given)

total time taken by the swimmer = 10 min = 10 × 60 sec = 600 sec

So, Using formulae

→ The average velocity of man = total displacement / total time taken = 0 / 600 = 0 m/s

and

→ The average speed of man = total distance covered / total time taken = 600 / 600 = 1 m/s

       

Therefore,

Average velocity of the man = 0 m/s

Average speed of the man = 1 m/s.