Question

20. What is the best tool to pry a nail from a piece of wood? (a) A lever such as claw ended hammer (b) A pulley system (c) A wheel and axle such as a wagon (d) An inclined plane such as ramp​

Answer 1

Answer:

What kind of simple machine are you using if you pry a nail from a board with the back of a hammer a a wedge C a lever B a pulley D a screw?

When a hammer is used to pry a nail out of a board, it is a first class lever because input and output forces are on opposite sides of the fulcrum. Describe how force changes when it is applied to the axle of a wheel and axle.

Answer 2

Answer:

a is right answer

Explanation:

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