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If an 81.00kg projectile is fired STRAIGHT up, with no air resistance, under the effects of gravity, and it reaches an altitude of 175km (175,000 metres), what was it's initial speed (what speed was it fired upwards at)?
I disregarded the objects mass and calculated 1,715,000 m/s...would these be correct?
Also, how would I create a formula for speed vs. time? I know it would be a quadratic...probably -4.9t^2, or something along those lines?
I disregarded the objects mass and calculated 1,715,000 m/s...would these be correct?
Also, how would I create a formula for speed vs. time? I know it would be a quadratic...probably -4.9t^2, or something along those lines?