Question

A ball is thrown vertically upward with a speed of 25.0 m/s. (a) How high does it rise? (b) how long does it take to reach its highest point?(c) hOW LONG DOES THE BALL TAKE TO HIT THE GROUND AFTER IT REACHES ITS HIGHEST POIN?(d) what is its velocity when it return to the level from it started?

Answer 1

whr r u stuck

Answer 2

don't know where to start basic physic class

Answer 3

u know first equation of motion?

Answer 4

second n third too

lol

Answer 5

Vf^1?

Answer 6

what??

Answer 7

no

Answer 8

An object moving with a constant accelerationa (sometimes called a uniform acceleration) starts with an initial velocity u and achieves a final velocity v in a time of t seconds.

The quantities u, v, a, and t are linked mathematically by the equation:

v= u + at

This is called the first equation of motion.

Answer 9

My professor didn't teach us that
I just know its a free falling question and I'm clueless

Answer 10

okk, u use v^2 = u^2 - 2gs

Answer 11

would it be 2(25.0)

Answer 12

no

v = 0

u = 25

g = 10

find s

Answer 13

would it be 31.25

Answer 14

awsumm correct

Answer 15

would that be the answer to part (a)?

Answer 16

yepp,

for b part use the first equation of motion: v = u - gt

Answer 17

Wow you explain this a lot better where it makes sense than my professor Thank you so much :D

Answer 18

what formula would I use for (c)?

Answer 19

you re welcome

first u tell me what all vaues u know for c part

Answer 20

Okay writing problem down and equation real quick sorry

Answer 21

Is t=2.5 answer for part (b)?

Answer 22

awsumm, correct

Answer 23

so part c would I simply multiply 31.25 x2.5?

Answer 24

no, u never do taht in free fall

second equation of motion this time: s = ut + 1/2g t^2

notice the plus sign coz we r goin down

Answer 25

would it look like this 31.25=25(2.5)+.5(10)(2.5)^2

Answer 26

yes, but t is to be found

it is not given while falling down

interestingly, it ll come out to be 2.5 lol

Answer 27

okay I had 62.5/31.5 is that right?

Answer 28

I meant 31.25

Answer 29

no sqrt 62.5/10

Answer 30

and thnx for the testimonial

Answer 31

You Should be a professor

Answer 32

hahaa, i am not a professor, but i do teach physics in my institute n my classes r very hip lol

Answer 33

What would formula set up be for part D and I promise that's it ;D