1 year ago

Mass A forklift raises a box 1.2 m and does 7.0 kJ of work on it. What is the mass of the box?

Physics

1 answer:

Mamont248 [21]1 year ago

5 0

Answer:

Work and Kinetic Energy

A B

3. A 0.180 kg balls falls 2.5 m. How much work does the force of gravity do on the ball? 4.41 J

4. A forklift raises a box 1.2 m doing 7.0 kJ of work on it. What is the mass of the box? 595.24 kg

5. How much work does the force of gravity do when a 25 N object falls a distance of 3.5 m? 87.5 J

Explanation:

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A force of 14 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work W is done in stretching i

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$W = 19.8 J$

Explanation:

14 lb force is required to stretch the spring by 4 inch distance

So we have

$F = 14 lbf$

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$F = 62.3 N$

stretch in the spring is given as

$x = 4 in = 0.1016 m$

now we will have

$F = kx$

$62.3 = k(0.1016)$

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Now we need to find the work to stretch it by x = 10 in = 0.254 m

so we have

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