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1 year ago

12

What is (f - 5)(-2) + 11f

2 answers:

n200080 [17]1 year ago

7 0

Answer:

-2f+10+11f

= 9f+10

Step-by-step explanation:

just expand it

VLD [36.1K]1 year ago

4 0

Agreed with guy above thanks

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Twice a number x, minus 17

LekaFEV [45]

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2 years ago

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vlada-n [284]

Answer:

The work done is 202.50Nm

Step-by-step explanation:

Given

$F =450N$

$x_1 = 30cm$

$x_2 = 60cm$

Required

The work done

First, we calculate the spring constant (k)

$F = kx_1$

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$k = \frac{450N}{30cm}$

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$F = kx_1$

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This gives:

$W =\int\limits^{60}_{30} {15x} \, dx$

Rewrite as:

$W =15\int\limits^{60}_{30} {x} \, dx$

Integrate

$W =15 \frac{x^2}{2}|\limits^{60}_{30}$

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Convert to Nm

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