course phy 121
An object is given an unknown initial velocity up a long ramp on which its acceleration is known to have magnitude 11 cm/s^2. .131 seconds later it passes a point 7.9 cm up the ramp from its initial position.
What are its possible initial velocities, and what is a possible scenario for each?
What is the maximum distance the object travels up the ramp?
'ds=vAve * 'dt
7.9cm=vAve * .131s
7.9cm/.131s=60.3 cm/s
The initial velocity might be 80cm/s approx and the velocity might be 40 cm/s approx. at the point of 7.9 cm; there are many
different combinations that would give an average velocity of approx. 60 cm/s.
This is so, but there's only one that is consistent with an acceleration of magnitude 11 cm/s^2.
For example a change in velocity from 40 cm/s to 80 cm/s in .131 s would yield an acceleration of about 300 cm/s^2.
I know that there are various factors that play a role in exactly how far the object will go up the ramp such as its size, friction, force due to gravity, etc. I'm not sure how to figure out the max distance up the ramp. "
&#At least part of your solution does not agree with the solution and comments given at the link below. You should view the solution at that link and self-critique as indicated there.
Solution
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