You are designing an elevator for a hospital. the force exerted on a passenger by the floor of the elevator is not to exceed 1.59 times the passenger's weight. the elevator accelerates upward with constant acceleration for a distance of 3.7 m and then starts to slow down. what is the maximum speed of the elevator?

maximum speed of the elevator is 6.54 m/s

Explanation:

given,

force exerted on the elevator is 1.59 times passenger weight.

when the elevator accelerates upward with rate of a.

total force

F    =  m × (a+g)

1.59× mg  = ma + mg        

0.59 mg = ma                    

a = 0.59 g            

we also have that

  =

  = 6.54 m/s

maximum speed of the elevator is 6.54 m/s

The maximum speed is 6.022 m/s

Solution:

As per the question:

Distance covered by the elevator in the upward direction, d = 3.7 m

Maximum force exerted by the elevator on the passenger = 1.59 w N

where

w = weight of the passenger = mg

where

m = mass of the passenger

g = acceleration due to gravity =

Therefore,

Maximum force exerted by the elevator on the passenger = 1.59mg N

Now, for the maximum speed of the elevator:

Net force on the floor of the elevator when it moves upwards:

Thus

For maximum acceleration:

Now, from the third eqn of motion with initial velocity 0:

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.

dang that balls went far