2 years ago

A Velocity vs. time graph is shown What is the acceleration of the object?

1 answer:

7 0

Answer: 4 m/s^2

Explanation: The acceleration of a velocity-time graph is the slope of the line.

The slope of a line is rise over run. In this line, the rise is 4 units and the run is 1 unit. 4/1=4.

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Andrews [41]

Answer:

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Explanation:

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2 years ago

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A wrestler weighs in for the first match on the moon. will the athlete weigh more or less on the moon than he does on Earth?

Firdavs [7]

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3 years ago

Which of the following describes pressure in a fluid ?

emmainna [20.7K]

Answer A sounds about right

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3 years ago

The pulley system has a mechanical advantage of 5. Determine how much input force is required to achieve 1000 N of lifting force

Katen [24]

I don’t think I need anything from my dad to get my hair fixed so I’m just bored I don’t want you guys

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2 years ago

how much power is needed to lift a box with a force of 780 newtons over a distance of 2 meters in 45 seconds

-BARSIC- [3]

Answer:

Explanation:

Power is the rate at which work is done and can be found by using the formula

$p = \frac{w}{t} \\$

p is the power in Watts (W)

w is the workdone in joules

t is time in s

but workdone = force × distance

From the question

force = 780 N

distance = 2 m

workdone = 780 × 2 = 1560 N

Since we now have the value of workdone we can find the power

We have

$p = \frac{1560}{45} = 34.6666666... \\$

We have the final answer as

Hope this helps you

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2 years ago