Question

mechanical advantage of a machine is 2 . how much effort should be exerted on it so that it lifts a load of 30 N?

Answer 1

$since \: ma \: = \: load \div effort \\ \\ then \: effort = load \times ma \\ \\ \\ thus \: effort \: = 2 \times 30 \\ = 60n$

Answer 2

Heya mate here's the answer....

We know,
Mechanical Advantage of a machine
=Load/Effort
So, MA=L/30
OR, 2=L/30
OR, L=2×30=60
Hence, Load=60N

So, a load of 60N will be lifted up.

Hope this helps....
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