2007-01-18 10:15:53 · 4 answers · asked by veronica9004@sbcglobal.net 2 in Science & Mathematics ➔ Physics
The first answer is right. The second is wrong, but he can be forgiven his mistakes, because you used incorrect units for acceleration and he tried to fix it in a bad way. The correct units for acceleration are m/s^2
2007-01-18 10:39:19 · answer #1 · answered by Anonymous · 0⤊ 0⤋
10m/m/m = 0.167m/m/s= 0.0028m/s/s
d= 1/2 at^2
d= 0.013m
In response the answer below.
10m/m means that 10 meters are being covered every minute. Which means that 0.167(rounded)m are being covered every second.
That means that the velocity is changing at 0.167m/s for every minute. That means that the velocity is increasing at 0.0028m/s for every second. It is a very slow acceleration, but it is a correct answer for the question as it was stated.
I noticed that the question was stated with a vague planet, not specifying earth.
I also thought that it could be a good lesson in teaching the students how to change unconventional units to those which are commonly used.
2007-01-18 18:35:12 · answer #2 · answered by motz39baseball 3 · 0⤊ 0⤋
Did you mean for the 1st 'm' to be meters and the 2nd&3rd 'm' to be minutes? If so, then motz39bas... is right.
He could also have converted the 3 seconds to .05 minutes and plugged that into d= 1/2 at^2. The answer comes out the same.
2007-01-18 20:51:53 · answer #3 · answered by sojsail 7 · 0⤊ 0⤋
x=1/2at^2
x=1/2(10)(3)^2
x=45m
2007-01-18 18:19:31 · answer #4 · answered by 7 · 1⤊ 0⤋