Physics problem to solve

timer Asked: Sep 18th, 2015

Question description

If you know the position vectors of a particle at two points along its path and also know the time interval during which it moved from one point to the other, can you determine the particle’s instantaneous velocity? Its average velocity? Explain.

A projectile is launched at some angle to the horizontal with some initial speed vi , and air resistance is negligible. (a) Is the projectile a freely falling body? (b) What is its acceleration in the vertical direction? (c) What is its acceleration in the horizontal direction?

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