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3 years ago

13

Please help !!

1 answer:

nikitadnepr [17]3 years ago

3 0

If the speed is constant, the acceleration a must be zero. Since force F = m•a, the total force must be zero.
In a 1D case, work W is the product of force F and distance d: W = F • d.
Since there is no more information given about friction or air resistance, I have to assume you are looking for the work done by the total force, wich is also zero.

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1) To calculate the work, we need the next equation:

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So the force is given by the problem so our mission is to find 'dx' in terms of 't'

2) we know that:

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3 years ago