Problem 1 An object with m1 = 5kg is attached to a spring of negligible mass. This mass/spring combination is then slid horizont
ally on a frictionless surface with a velocity of 5 m/s towards a stationary object with m2 = 6kg. Upon impact, the spring compresses, then we examine two cases. First, find the velocities of the two objects assuming the spring completely relaxes again after the interaction. Second, assume that m2, after they separate, slides up a frictionless incline. (a)What is the relative speed of the masses when the spring is maximally compressed?
1 answer:
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The image formed from the lens is real, inverted and enlarged
Explanation:
The magnification of a lens is given by:
(1)
where:
y' is the size of the image
y is the size of the object
q is the distance of the image from the lens
p is the distance of the object from the lens
For this lens, the magnification is
m = -1.6
We notice the following:
- The magnification is negative
- The magnification is larger than 1
Looking at eq.(1), we can therefore make the following conclusions:
- SInce and
, it follows that
, so the image is larger than the object
- Since and
, it follows that
(since y > 0 for convention): this means that the image is inverted
- Since and
, it follows that
(since p > 0 for convention): this means that the image is real
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