loader  Loading... Please wait...

Question(s) / Instruction(s):

a) A girl in an elevator is holding one end of a string, and a weight hangs from the other end. In which of the following cases is the magnitude of the tension in the string greatest?
while the elevator moving downward and it is slowing down
while the elevator moves upward at constant speed
while the elevator moves downward with constant speed
while the elevator is at rest
while the elevator is moving upward at it is slowing down

b) A ball is thrown upward at point A, with initial speed , at an angle θ to the horizontal. Half-way up is point B, and the top of the arc is point C. Where are v (the magnitude of ball's velocity) and a (the magnitude of the ball's acceleration) greatest?
v is greatest at A and a is the same at A, B and C
v is greatest at A and a is greatest at A
v is greatest at B and a is greatest at B
v is greatest at A and a is greatest at C
v is greatest at C and a is greatest at C
v is greatest at C and a is the same at A, B and C
v is greatest at C and a is greatest at B
v is greatest at B and a is greatest at A
v is greatest at B and a is the same at A, B and C
v is greatest at A and a is greatest at B
v is greatest at C and a is greatest at A
v is greatest at B and a is greatest at C

Find Similar Answers by Subject


Student Reviews

Rate and review your solution! (Please rate on a Scale of 1 - 5. Top Rating is 5.)


Expert's Answer
Download Solution:
$1.79

This solution includes:

  • Plain text
  • Cited sources when necessary
  • Attached file(s)
  • Solution Document(s)



Reach Us

408-538-8534

20-3582-4059

39-008-4233

+1-408-904-6494