Question

a second class lever needs less effort to lift a heavy load.why

Answer 1

Answer:

this is because the effort arm is always longer than load arm of these Lever. mechanical advantage of second order lever is always more than 1.

I hope answer will help you lot.

Answer 2

Answer:

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Explanation:

A second-class lever is when the load is placed between the fulcrum and effort. This lever type has been used in the design of many devices such as a wheelbarrow, nutcracker, bottle opener, and conventional door.