What is the mechanical advantage of a person who uses a crowbar on a rock that weighs 200 newtons if the input arm is 50 cm long and the output arm is 20 cm long?

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Answer 1 · 2017-06-02T08:28:49

The mechanical advantage is #=2.5#

The mechanical advantage is

#=# (length of effort arm)#/#(length of resistance arm)

Here, we have

length of effort arm is #=50 cm#

length of output arm is #=20cm#

The mechanical advantage is

#MA=50/20=2.5#