- #1
mcnealymt
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Homework Statement
A 46g rock is placed in a slingshot and the rubber band is stretched. The force of the rubber band on the rock is shown by the graph in the figure(Figure 1) .
http://session.masteringphysics.com/problemAsset/1073689/4/10.P37.jpg
a)Is the rubber band stretched to the right or to the left?
b)Does this rubber band obey Hooke's law?
c)What is the rubber band’s spring constant k?
d)The rubber band is stretched 29cm and then released. What is the speed of the rock?
Homework Equations
Fsp= -kΔx
The Attempt at a Solution
a) Left because the displacement is negative and therefore the Fsp must be positive?
b) Yes, it obeys Hooke's Law because as the displacement increases, the amount of force does?
c) Isn't it just the slope of the given graph?
d) Honestly not sure where to begin.