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AznBoi
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Instantaneous Acceleration Help PLEASE!~~~
I have a homework problem on Instantaneous acceleration:
The engine of a model rocket accelerates the rocket vertically upward for 2seconds as follows: At t=0, speed=0; At t=1s, s=5m/s; At t=2s, s=16m/s.
a) find the average acceleration during the 2s interval and
b) find the instantaneous acceleration at t=1.5s
My work so far:
a) avg acceleration:
a=v/t , (16m/s -0m/s)/(2s-0s)
= (16m/s)/2s
a=8m/s^2 Is that right??
b) I need help on this one:
What is the easiest and simplest way to find the instantaneous accerlation? What is the simplest equation?
I found an equation on a site but I don't understand what the variables mean and what numbers I have to put in.
Equation?: a= lim t->0 (delta)v/(delta)t
On site: http://rockpile.phys.virginia.edu/arch2.pdf#search="instantaneous acceleration"
Don't understand what it means and what numbers I have to subsitute!
BTW THANKS A LOT! =D
I have a homework problem on Instantaneous acceleration:
The engine of a model rocket accelerates the rocket vertically upward for 2seconds as follows: At t=0, speed=0; At t=1s, s=5m/s; At t=2s, s=16m/s.
a) find the average acceleration during the 2s interval and
b) find the instantaneous acceleration at t=1.5s
My work so far:
a) avg acceleration:
a=v/t , (16m/s -0m/s)/(2s-0s)
= (16m/s)/2s
a=8m/s^2 Is that right??
b) I need help on this one:
What is the easiest and simplest way to find the instantaneous accerlation? What is the simplest equation?
I found an equation on a site but I don't understand what the variables mean and what numbers I have to put in.
Equation?: a= lim t->0 (delta)v/(delta)t
On site: http://rockpile.phys.virginia.edu/arch2.pdf#search="instantaneous acceleration"
Don't understand what it means and what numbers I have to subsitute!
BTW THANKS A LOT! =D
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