Question

Question 1) which of the following is not affected by friction
A) VR
B) efficiency
C) MA
D) both b and c

Qusestion 2) mechanical advantage is ratio of
A) two force
B)two work
C)two distance
D)two loads

Answer 1

Answer:

ans1=>(A) :- VR

ANS2=>(A):-two forces

Explanation:

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