Question

make a model to increase the efficiency of any machine or transport

Answer 1

Decrease friction!

The efficiency of any machine measures the degree to which friction and other factors reduce the actual work output of the machine from its theoretical maximum. A frictionless machine would have an efficiency of 100%. A machine with an efficiency of 20% has an output only one fifth of its theoretical output. The efficiency of a machine is equal to the ratio of its output (resistance multiplied by the distance it is moved) to its input (effort multiplied by the distance through which it is exerted); it is also equal to the ratio of the AMA to the IMA. This does not mean that low-efficiency machines are of limited use. An automobile jack, for example, must overcome a great deal of friction and therefore has low efficiency, but it is extremely valuable because small effort can be applied to lift a great weight

Answer 2

Answer:

Explanation:

reduce friction

MECHANICAL EFFICIENCY IS A COMPARISON OF A MACHINE'S WORK OUTPUT WITH THE WORK INPUT. MECHANICAL EFFICIENCY=WORK OUTPUT/WORK INPUT X 100 Page 2 NO MACHINE IS 100 PERCENT EFFICEINT, BUT REDUCING THE AMOUNT OF FRICTION IN A MACHINE IS A WAY TO INCREASE ITS MECHANICAL EFFICIENCY.

The efficiency of machine is reduced due to friction Friction reduces efficiency because when two surfaces slide past each other, friction resists their motion, and in real machines, some input work is always used to overcome friction..