How could you increase the mechanical advantage of a lever?

What is the mechanical advantage of a lever with an input arm of 100 cm and an output arm of 50 cm

How can you increase the mechanical advantage of a plane?

What simple machines are used in a wheel barrow?

A simple machine is used to lift a weight. What happens to he amount of work that must be done compared to doing the work without the machine?

A simple machine is used to lift a weight. What happens to the amount of distance the force is exerted over if a machine is used?

Which one of the following simple machines is a third class lever?

Which of the following is an example of a first class lever?

A ramp is used to push a piano up three stairs. The height that it is being pushed up is 2 feet and the length of the ramp is 8 feet. What is the mechanical advantage of the ramp

What is the general formula for all simple machines and mechanical advantage?

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