Question

Write a letter in 100-120 words to the Sales Manager, Janata Medical Store,
Vasundhara, Ghaziabad, Uttar Pradesh placing an order for sanitary items and other
medical equipments to ensure containment of spread of the pandemic “Covid 19"
in the School. Sign yourself as Ravi/Raveena, Sports Secretary.​

Answer 1

Answer:

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By means of a machine an applied force is increased, its direction is changed, or one form of motion or energy is changed into another form. ... Thus defined, such simple devices as the lever, the pulley, the inclined plane, the screw, and the wheel and axle are machines.