How much work does it take to raise a #14 kg # weight #2 m #?

Answer 1

It takes #-274.68J#.

You have to use the equation #L=-(U(B)-U(A))#, where #U=mgh#. Substitute your values in the equation and find #L=0-mgh=-(14kg*9.81m/s^2*2m)=-274.68J#. That's all.

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Answer 2

Benjamin Asiedu

To calculate the work done, you can use the formula: Work = Force × Distance. The force here is the weight of the object, which is equal to its mass multiplied by the acceleration due to gravity (9.8 m/s^2). So, the force = mass × gravity = 14 kg × 9.8 m/s^2 = 137.2 N. The distance is given as 2 m. Therefore, Work = 137.2 N × 2 m = 274.4 joules. So, it takes 274.4 joules of work to raise a 14 kg weight 2 m.

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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.