Question

A ball is dropped from a height of 50 metre if its velocity increases uniformly at the rate of 5 metre per second square with what velocity will it strikes the ground?. ​

Answer 1

ɢɪᴠᴇɴ :-

★A ball is dropped from a height of 50 metre.

&

★ It's velocity increases uniformly at the rate of 5metre per second square.

ᴛᴏ ғɪɴᴅ:

★ Final velocity of ball

sᴏʟᴜᴛɪᴏɴ:-

As we know,

3rd equation of motion is_____⋆

v² = u² +2as

Now,

find the final velocity using this equation __

v² = u² +2as

⟹ v² = (0)² + 2 * 5 *50

⟹ v = √500

⟹ v = 22.36 m/sec

Hence, final velocity of ball = 22.36 m/s

${\blue{\underline{\underline{\bold{\huge{Extra -Information :-}}}}}}$

☞ Uniform Velocity :-

It's a term used to express a constant rate of change of distance per unit time.

☞ Equations of motion :-

1. v =u +at

2. S = ut + ½ at²

3. v² = u² + 2as

$\bold\blue{Thanks...!! }$

Answer 2

Answer:

v² = u² +2as

⟹ v² = (0)² + 2 * 5 *50

⟹ v = √500

⟹ v = 22.36 m/sec