A cylinder with a radius of 0.25 m is lying on its side. One end of a meter stic

Question

A cylinder with a radius of 0.25 m is lying on its side. One end of a meter stick (length 1 m) is placed on the top side of the cylinder while the other end is held so that the stick is horizontal. With a slight pressure on the ruler so that there is no slipping, the ruler is moved over the can causing the can to roll until the other end of the ruler is on top of the can. What is the horizontal linear distance the can will roll? a. 0.25 m. b. 0.50 m. c. 1.00 m. d. 2.00 m. What is true for objects moving along a circular path with a constant speed? ? On a graphical plot of force vs. distance (like the picture at the right), how much work was done over the distance of 0.6 m? (Recall: W- Fd. Read chart very carefully!) a. W- 24J c. W= 240 J 60 50 Z, 40 2 30 20 10 0 b. W-2.4 0.0 0.1 0.2 0.3 0.4 0.5 0.6 distance (m) A cable ofa certain initial length, L1, and diameter, Di, is stretched vertically a distance diameter is one third as much? DD)(Initial length remains the same.) 4 L a. 9 times farther b. 3 times farther c. the same distance d. one third as far e one ninth as far VAL, when supporting a certain load. How much will the cable be stretched if it's AL

Explanation / Answer

1] distance rolled = length of arc = 1m

option c

2] F = -mv^2/r (r^) option c

3] W = F d = 40*0.6 = 24J option a

4] delta L = constant/D^2 ,

it becomes 3^2 = 9 times

option a is correct,

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