- I'm under the impression that a canon ball being fired is projectile
- the acceleration in the y direction is -9.8, but what use is that when I don't know the initial velocity or how high it goes?
- I don't know when it will be zero because I don't have any other information.
If I'm...
Homework Statement
A canon ball is fired from a canon upwards at an angle above the horizontal.
a. Sketch a graph showing the height of this canon ball over time if it was fired at 30°, 45° and 60° above the horizontal.
b. Sketch showing the acceleration of the canon ball over time if it was...
Thanks for that :) It is pretty vague, my friend suggested I put something silly like 'the colour of the object'
I will put down surface area and speed only when calculating kinetic friction.
Homework Statement
What two things do not contribute to friction (i.e. what is friction not dependent upon)?
Homework Equations
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The Attempt at a Solution
After googling I have read that it is speed and surface area - but they had no explanations.
I don't understand how either of...