cl0wn11
Answered

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Sally and Suzy are moving into their first college dorm together. They are loading all their furniture onto a truck with a ramp that is 8 feet long.

How far is the back of the truck off the ground if the mecanical advantage of this ramp is 2?


A) .25 ft
B) 4 ft
C) 8 ft
D) 16 ft​

Sagot :

jcherry99

Answer:

B

Explanation:

Formula

Mechanical advantage = length of the ramp / height

Givens

Length of the ramp = 8

Mechanical advantage = 2

height = ?

Solution

2 = 8feet / height                                  Multiply both sides by height

2* height = 8 feet * height / height      Combine

2* height  = 8 feet                                 Divide by 2

2*height/2 = 8 feet/2                              

height = 4 feet.

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