Superguy is flying at treetop level near Paris when he sees the Eiffel Tower elevator start to fall (the cable snapped).His x-ray vision tells him Lois LaTour is inside.If Superguy is 1.00 km away from the tower,and the elevator falls from a height of 230 m,how long does Superguy have to save Lois,and what must be his average speed?
A)4.84 s,206 m/s
B)8.39 s,119 m/s
C)6.85 s,150 m/s
D)9.69 s,103 m/s
E)3.43 s,292 m/s

Question

Superguy is flying at treetop level near Paris when he sees the Eiffel Tower elevator start to fall (the cable snapped).His x-ray vision tells him Lois LaTour is inside.If Superguy is 1.00 km away from the tower,and the elevator falls from a height of 230 m,how long does Superguy have to save Lois,and what must be his average speed?​
A)4.84 s,206 m/s
B)8.39 s,119 m/s
C)6.85 s,150 m/s
D)9.69 s,103 m/s
E)​3.43 s,292 m/s

Quizplus · Accepted Answer

The time it takes for the elevator to fall can be calculated using the formula for free fall: $ t = \sqrt{\frac{2h}{g}} $, where $ h = 230 $ m and $ g = 9.81 $ m/s². This gives approximately 6.85 seconds. The average speed required is the distance (1.00 km) divided by the time (6.85 s), which is approximately 150 m/s.

Superguy Is Flying at Treetop Level near Paris When He