The student places the metre rule on a pivot so that it balances.
She places a load P on one side of the metre rule at a distance x from the pivot. She
places another load Q on the metre rule and adjusts the position of the load Q so that
the rule balances, as shown in Fig. 1.1.
The load Q is a distance y from the pivot.
The readings are shown in Table 1.1.
Table 1.1
weight of P/N
|
weight ofQ/N
|
x/
|
y/
|
2.0
|
5.0
|
39.0
|
15.5
|