The velocity ratio of a machine is 6 and it efficiency is 75%.what effort would be needed to lift a load of 300N with the machine?

(300 / 6) / .75

Find Effort=

To find the effort needed to lift a load using a machine, we can use the formula:

Effort = (Load / Velocity Ratio) * (1 / Efficiency)

Let's plug in the given values:

Load = 300N
Velocity Ratio = 6
Efficiency = 75% = 0.75 (as a decimal)

Effort = (300 / 6) * (1 / 0.75)
= 50 * (1 / 0.75)
= 50 * 1.3333 (rounded to four decimal places)
= 66.67N

Therefore, the effort needed to lift a load of 300N using the given machine would be approximately 66.67N.