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Answer to Question #94320 in Mechanics | Relativity for Jibril

Question #94320
An object is short from the ground at 125m/s at an angle of 30 degree above the horizantal.How far away does the Land.
Expert's answer

@$v_0 = 125\frac{\text{m}}{\text{s}}; \alpha = 30\degree; \\ d = \frac{v_0^2\sin{2\alpha}}{g} = \frac{(125\frac{\text{m}}{\text{s}})^2\sin{(2\cdot30\degree)}}{9.81\frac{\text{m}}{\text{s}^2}} \approx 1379\text{ m}.@$

For derivations, you may visit:

https://en.wikipedia.org/wiki/Range_of_a_projectile

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