Question

1. to split an orange 1 cm wide a grade eight must move a knife 6 cm into the orange. what is the speed ratio of the knife?

Explanation:

Step1: Understand the problem

We need to find the speed ratio (mechanical advantage related to distance here, speed ratio in simple machines is often the ratio of distance moved by effort to distance moved by load). The effort distance (knife movement) is 6 cm, the load distance (orange's width, the distance the knife needs to cut through) is 1 cm.

Step2: Calculate the speed ratio

Speed ratio (SR) is given by the formula $SR=\frac{\text{Distance moved by effort}}{\text{Distance moved by load}}$. Substituting the values, effort distance = 6 cm, load distance = 1 cm. So $SR = \frac{6}{1}=6$.

Answer:

The speed ratio of the knife is 6.