A ramp with a mechanical advantage of 4 is used to move a 38-newton load. What effort force is needed to push the load up the ramp?

Question

A ramp with a mechanical advantage of 4 is used to move a 38-newton load. What
effort force is needed to push the load up the ramp?
A.9.5 N
B.15.2N
C.3.9 N
D.0.11 N

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Kim Cúc 5 years 2021-08-28T19:26:09+00:00 1 Answers 73 views 0

Answers ( )

  1. huyenthanh
    0
    2021-08-28T19:27:54+00:00
    Reply

    Explanation:

    It is given that,

    Mechanical advantage of a ramp is 4

    It is used to move a 38 N load

    We need to find the force needed to push the load up the ramp. The mechanical advantage is equal to the ratio of output force to the input force. We have output force as 38 N

    So,

    4=\dfrac{38}{F_i}\\\\F_i=\frac{38}{4}\\\\F_i=9.5\ N

    So, the force of 9.5 N is needed to push the load up the ramp.  

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