- #1
sundrops
- 55
- 0
kay well here goes:
An object moving with constant acceleration has a velocity v = 55.2m/s when it is at x = 6.9m and a v = 82.4m/s when it is at x = 12.4m. What is its acceleration?
Now this problem qould be simple if time were given but it isn't so I'm going to need a little bit of help please.
What I did with this one was I plugged the numbers into the following equation:
Vf^2 = Vi^2 +2a(xf - xi)
which gave me,
(82.4)^2 = (55.2)^2 + 2a(12.4 - 6.9)
6789.76 - 3047.04 = 2a(5.5)
a = 340.25m/s^2
whish is needless to say, well...impossible. Is there another way to attack this problem or maybe if someone could please point out my mistake?
An object moving with constant acceleration has a velocity v = 55.2m/s when it is at x = 6.9m and a v = 82.4m/s when it is at x = 12.4m. What is its acceleration?
Now this problem qould be simple if time were given but it isn't so I'm going to need a little bit of help please.
What I did with this one was I plugged the numbers into the following equation:
Vf^2 = Vi^2 +2a(xf - xi)
which gave me,
(82.4)^2 = (55.2)^2 + 2a(12.4 - 6.9)
6789.76 - 3047.04 = 2a(5.5)
a = 340.25m/s^2
whish is needless to say, well...impossible. Is there another way to attack this problem or maybe if someone could please point out my mistake?