Question

pls solve fast needs it

a body projected vertically upward with velocity 20 metre per second returns to the ground with velocity 16 metre per second then the maximum height attained by the body is (41 / 20)xN and then the value of N is ​

Answer 1

Answer:

Consider the downward direction to be positive.

Acceleration due to gravity =g

Initial velocity =−u

Final velocity v=0

∴ v

2

−u

2

=2(−g)H

Or 0−u

2

=−2gH

⟹ H=

2g

u

2

We get that H∝

u

2

Thus maximum height attained becomes four times (4H) when the initial velocity is increased by 2 times.

Explanation:

here is the correct answer please mark me brainliest and give thanks