During a hockey game, a puck is given an initial speed of 10 m/s. It slides 50 m on the horizontal ice before it stops due to friction. What is the coefficient of kinetic friction between the puck and the ice?
A) 0.090
B) 0.10
C) 0.11
D) 0.12
Question 2
A farsighted girl has a near point at 2.0 m but has forgotten her glasses at home. The girl borrows eyeglasses that have a power of +2.75 diopters.
With these eyeglasses, what is the near point of the girl, assuming that she wears them extremely close to her eyes? A) 28 cm
B) 31 cm
C) 33 cm
D) 37 cm
E) 40 cm
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