Question

a projectile is fired at v0= 355 m/s at an angle of 67.5 with respect to the horizontal. Assume the air friction would shorten the range by 31.1%. How far will the projectile travel in the horitzontal direction of R?

A) 5.13

B) 6.27

C) 7.39

D) 8.52

Answer 1

Concept - find the original range using the initial velocity and the angle of launch as shown below. Then find the required shortened range using the original range .

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