Question

Can someone help me calculate this?
your mass (kg) × acceleration of gravity (9.81m/s/s) = your weight (N)

your weight (N) × height of board (m) = work done in stepping up onto board

Answer 1

Your mass (68) = your mass in lbs 150/2.2 ) Use a bathroom scale to get you mass in lbs.

Answer 2

@aum

Answer 3

Would it be
(68) x (9.81,/s/s) = 150
(150) x (24) =_______
Did I arrange that correctly?

Answer 4

The height of the board is 24cm

Answer 5

24cm = 0.24m

always use metres in calculations

Answer 6

Ooops, yeah. So I did, set it up right though?

Answer 7

Looks like it

Answer 8

68 times 9.8 is definitely not 150. You should be able to tell, by estimating, noticing that 68*10 = 680... 150 is not close

Answer 9

Nuu 150 is my weight, and 68 is my weight in kg

Answer 10

8.9 is the time it took me so replace that with 9.8.

Answer 11

(68) x (9.81,/s/s) =???

Answer 12

667.08

Answer 13

That's your weight in Newtons. Multiply it by the height

Answer 14

16009.92?

Answer 15

No, scroll back to my very first post

Answer 16

Wait, I don't see what I did wrong, I multiplied the height.

Answer 17

Again, see my first post...

Answer 18

Ahh! 160.0992

Answer 19

(68) x (8.9,/s/s) = 667.08
(667.08) x (0.24) = 160.0992

Answer 20

Gravity is 9.8 not 8.9

Answer 21

Oh I thought it meant the acceleration of the speed. . .Between the reps I was doing. Eh, confused.

Answer 22

Agent?

Answer 23

It looks correct, as long as you used 9.8 and not 8.9.

Answer 24

Okay, thank you.

Answer 25

(68) x (8.9,/s/s) = 666.4
(666.4) x (0.24) =159.936

Answer 26

You are still using 8.9 for some reason...

Answer 27

The time has to be different otherwise my trials will be the same.

Answer 28

Look what you originally posted:

your mass (kg) × acceleration of gravity (9.81m/s/s) = your weight (N)

your weight (N) × height of board (m) = work done in stepping up onto board

Answer 29

It's not time, it's gravity. You posted it right at the top.

Answer 30

I dun know it wouldn't make sense then, because I have two trials, if I used the same number it would give me the same result, can't be right. I'm thinking it means my time and speed.

Answer 31

Trial
Height of board
(m)24(M)>0.24
Weight
(n)150(N)
Work for 1 repetition
(J)129.2(J)
Time for 20 repetitions
(S)8.9(s)
Work for 20 repetitions
(J)2584(J)
Power for 20 repetitions
(J/s)290.337(J/s)