Question

a body starts from rest and covers a distance of 75m by acclerating uniformly at 15m/s.find its final velocity and time​

Answer 1

Given :-

A  body starts from rest and covers a distance of 75m by acclerating uniformly at 15m/s²

To Find :-

Final velocity and time​

Solution :-

We know that

v² - u² = 2as

where

v = final velocity

u = initial velocity

a = acceleration

s = distance

v² - 0² = 2(15)(75)

v² = 2250

v = √2250

v = 47.43 m/s

Now

v = u + at

47.43 = 0 + (15)t

47.43 = 15t

47.43/15 = t

3.162 = t

Therefore

Final velocity is 47.43 m/s

Time taken is 3.162 sec

Answer 2

Explanation:

Question :-

Given :-

A  body starts from rest and covers a distance of 75m by acclerating uniformly at 15m/s²

To Find :-

Final velocity and time

Solution :-

We know that

v² - u² = 2as

where

v = final velocity

u = initial velocity

a = acceleration

s = distance

v² - 0² = 2(15)(75)

v² = 2250

v = √2250

v = 47.43 m/s

Now

v = u + at

47.43 = 0 + (15)t

47.43 = 15t

47.43/15 = t

3.162 = t

Therefore

Final velocity is 47.43 m/s

Time taken is 3.162 sec

Read more on Brainly.in - https://brainly.in/question/42655864#readmore