Question

Q.5. a. What you mean by lever and load (L).
b. Give the equation for the efficiency of a machine.
c. A pair of scissors is used to cut a piece of cloth placed 3 cm from the rivet. A
force of 9 kg is applied at a distance of 5 m from the rivet. What is the Resistance
offered by the cloth?

plz ans this correctly

Answer 1

Answer:

a) A lever is a bar that turns on an unmoving point called a fulcrum. When you push or pull on one end of the bar that pressure is called the force. The object that is lifted on the other end is called the load.

b) The work efficiency formula is efficiency = output / input, and you can multiply the result by 100 to get work efficiency as a percentage. This is used across different methods of measuring energy and work, whether it's energy production or machine efficiency

c) answer is in the pic above.

Explanation:

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