A hot air balloon is descending at a rate of 2.2 m/s when a passenger drops a ca

Question

A hot air balloon is descending at a rate of 2.2 m/s when a passenger drops a camera. (a) If the camera is 35 m above the ground when it is dropped, how longdoes it take for the camera to reach the ground?
1s
Your answer differs from the correct answerby orders of magnitude. s
(b) What is its velocity just before it lands? Let upward be thepositive direction for this problem.
2m/s (a) If the camera is 35 m above the ground when it is dropped, how longdoes it take for the camera to reach the ground?
1s
Your answer differs from the correct answerby orders of magnitude. s
(b) What is its velocity just before it lands? Let upward be thepositive direction for this problem.
2m/s

Explanation / Answer

(a) If the camera is 35 m above the ground when it is dropped, how longdoes it take for the camera to reach the ground?
1s
35=2.2t+4.9t*t
solving we get t= 2.4571sec
Your answer differs from the correct answerby orders of magnitude. s
(b) What is its velocity just before it lands? Let upward be thepositive direction for this problem.
2m/s
v=u+gt=2.2+9.8*2.4571=26.27m/sec

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