Why is density equal to mass/volume?
1 answer:
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The net force in the x-direction is 100 N forward
Explanation:
To answer the question, we just need to care about the forces acting along the x-direction.
Along this direction, we have:
- The pedaling force, forward, of magnitude F = 400 N
- The air resistance, acting backward, of magnitude R = 300 N
Taking forward as positive direction, this means that we can rewrite the two forces as
F = 400 N
R = -300 N
Therefore, the net force in the x-direction is
And the positive sign means its direction is forward.
Learn more about forces here:
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