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  • In dealing with motion of projectile in air, we ignore effect of air resistance on motion. This gives trajectory as a parabola as you have studied. What would the trajectory look like if air resistance is included?

In dealing with motion of projectile in air, we ignore effect of air resistance on motion. This gives trajectory as a parabola as you have studied. What would the trajectory look like if air resistance is included? Sketch such a trajectory and explain why you have drawn it that way.

Answers (1)

The horizontal and vertical components of the velocity decrease due to air resistance. So, as a result, the max height also becomes lesser than in the ideal case.

Now, R=u^{2}\sin 2\; \theta/g and max height H=u^{2}\sin^{2} \; \theta/2g

So, h1<h2\;and\; R1<R2

But, in the second case when h1<h2, due to smaller time taken to rise, the overall time of flight for both cases stands equal

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