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1 year ago

6

How could you increase the force advantage of a lever?Select one:a. Make the effort length longer.b. Make the effort length shor

ter.c. Make the lifting length longer.d. Make the effort force larger.

1 answer:

11Alexandr11 [23.1K]1 year ago

4 0

The ideal mechanical advantage of a lever (IMA) is given by:

$IMA=\frac{Le}{Lr}$

Where:

Le = Effort of the arm

Lr = Resistance arm.

Therefore, we can increase the force adventage by increasing the effort arm or reducing the load arm

Answer:

a. Make the effort length longer.

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Complete Question

The complete question is shown on the first uploaded image

Answer:

The answer is

$T_2 = 1.008$ % higher than $T_1$

$T_2 = 0.99$ % lower than $T_1$

Explanation:

From the question we are told that

The first string has a frequency of $f_1 = 230 Hz$

The period of the beat is $t_{beat} = 0.99s$

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From the question

$\frac{f_2}{f_1} = \sqrt{\frac{T_2}{T_1} }$

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Substituting values

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For $f_2$ having a lower tension

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From the question

$\frac{f_2}{f_1} = \sqrt{\frac{T_2}{T_1} }$

$\frac{T_2}{T_1} = \frac{f_2^2}{f_1^2}$

Substituting values

$\frac{T_2}{T_1} = \frac{(228.99)^2}{(230)^2}$

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