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Vlad [161]
3 years ago
11

50W of power is generated using 100J of work to move a box onto a shelf. How long did it take to move the box from the floor to

the shelf?
Physics
1 answer:
svetoff [14.1K]3 years ago
5 0

Answer: time t = 2 seconds

Explanation:

Given that

Power P = 50W

Energy E = 100J

How long did it take to move the box from the floor to the shelf ? This implies time taken.

Power is defined as the rate at which work is done. I.e

P = W.D/t

Where work done = energy

50 = 100/t

Make t the subject of formula

t = 100/50

t = 2 second

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two engines are turned on for 763 s at a moment when the velocity of the craft has x and y components of v0x = 6380 m/s and v0y
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Answer:

Explanation:

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y=7.27\times 10^6

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4.50\times 10^6=6380\times 763+\frac{a\times 763^2}{2}

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y=v_0_y\times t+\frac{a't^2}{2}

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