How much work does it take to raise a #2 kg # weight #3 m #?

Answer 1

Olivia Askew

#W = 58.8Nm#

Force times distance equals work.

#W=Fd#,

and force is equal to acceleration times mass.

#F=ma#.

Here, the acceleration is equal to the force of gravity.

#a=g=9.8m/s^2#,

and #m=2kg#, as in the question, so

#F=2kg*9.8m/s^2=19.6N#.

Inserting this into the equation for work, along with the distance of #3m#,

#W=Fd=19.6N*3m=58.8Nm#

This is the definitive response.

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Answer 2

William Audy

The work done to raise a 2 kg weight by 3 m is calculated using the formula:

Work = Force × Distance

In this case, the force required to lift the weight against gravity is equal to the weight of the object multiplied by the acceleration due to gravity (9.8 m/s²).

Force = mass × acceleration due to gravity

So, Force = 2 kg × 9.8 m/s² = 19.6 N

Now, using the formula for work:

Work = Force × Distance

Work = 19.6 N × 3 m = 58.8 Joules

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.