My experiment is like this picture found in the net. The weight in the middle is called R in my experiment, while the left one is P and the right Q.
Now there is one question asked, the answer of which is needed to be included in the report.
It goes like this: "the direction of ALL the resultant vector R=( l P+Q l ) must be the same. If you want the direction of the resultant vector R to be different, what should you do to the arrangement of apparatus in Figure 4? (Use your own creativity / creative thinking)"
2. The attempt at a solution
Is the direction of the resultant vector R the same as the gravity which is downwards? Then how can we change it?
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