Answer:
a) 482.5N
b) 17.4N
Explanation:
40 rev/min = 40 * 2π / 60 = 4.2 rad/s
3 rev/min = 3 * 2π / 60 = 0.314 rad/s
The centripetal acceleration that the child is subjected to
And their centripetal force is
From here we can plug the number in
(a)
(b)
No for most students want school to end but mostly they would en in june
Answer:
B. At stage B, because the elastic is completely strecthed.
Explanation:
Try pulling a rubber band or something stretchable and take a piece of small paper (just enough to fit in the rubber band). now try to pull the rubber band into 3 levels.
1st level - pull the rubber band with a short force and see if the paper will travel farther.
2nd level - now pull the rubber band with a medium force and see if the paper will be much farther compared to the (1st level)
3rd level - pull the rubber band with full force and see if the paper is much farther compared to the (2nd level).
Disclaimer:
Just in case I gave the wrong answer "Please don't hate me"
Thank you.
<span>62 x 9.8 x 12= 7 291.2! Hope this is helpful!</span>