Question

plz answer with explanation both of them plz​

Answer 1

Answer:

let Effort be x

load = 2x

load arm =15cm

effort arm =?

by using formula of principle of liver

l×ld = e ×ed

or 2x .15 = x .ed

thensolving effort distance = 30cm

now

mechanical adventages = L /E

now

l×Ld =E×Ed

or l/E = Ed /ld

=60÷1.5

=40

5

*herefore mechanical advantages id 40

Explanation:

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