Question

A ball is falling from a height of 100 m. After 1 sec, it covers 5 m distance. Find the distance after 4 sec.​

Answer 1

Answer:

The ball covers 20 m in 4 seconds..

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Answer 2

$\huge\underbrace\mathcal\green{ Question:}$

A ball is falling from a height of 100 m. After 1 sec, it covers 5 m distance. Find the distance after 4 sec.

$\huge\underbrace\mathcal\purple{ To\: Find:}$

The distance travelled after 4 sec.?

$\huge\underbrace\mathcal\blue{ Given:}$

Height = 100 m

Distance travelled = 5 m

Time taken = 1 sec

$\huge\underbrace\mathcal\pink{Sollution:}$⠀ ⠀⠀ ⠀ ⠀⠀ ⠀

We know that velocity of an object is given by,

$\boxed{velocity = \frac{displacement}{time \: taken} }$

➜$velocity = \frac{5}{1}$

➜$\boxed{velocity= 5ms ^{ - 1}}$

Now, to find distance travelled by ball after 4 secs, we have,

v = 5m/s

t = 4 secs

We know that,

$\boxed{displacement = velocity \times time}$

➜$d = 5 \times 4$

➜$\boxed{d = 20 \: meter}$

Therefore, The Distance after 4 second will be 20 meter.