Question

A wheelbarrow has an IMA of 2.2. The distance of resistance is .45m. What 8 is the distance of effort? * a- 2.2 b- 0.99 c- 1.12 d- 4.5

Answer 1

Answer:

Distance of effort = 0.99m

Explanations:

Note: IMA means Ideal Mechanical Advantage

When the Mechanical Advantage of a machine is ideal:

The effiiciency is 100%

The Mechanical Advantage equals the Velocity Ratio. That is, MA = VR

From the question:

IMA = 2.2

Since IMA = VR

VR = 2.2

Also note that the distance of the resistance is the distance moved by the load.

Distance of resistance = Distance of load = 0.45 m

`\begin{gathered} VR\text{ = }\frac{Dis\tan ce\text{ moved by effort}}{\text{Distance moved by load}} \\ 2.2\text{ = }\frac{\text{Distance of effort}}{0.45} \\ \text{Distance of effort = 2.2}*0.45 \\ \text{Distance of effort = }0.99\text{ m} \end{gathered}`