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Gun sights are adjusted to aim high to compensate for the
Chapter 3, Problem 39(choose chapter or problem)
Problem 39PE
Gun sights are adjusted to aim high to compensate for the effect of gravity, effectively making the gun accurate only for a specific range. (a) If a gun is sighted to hit targets that are at the same height as the gun and 100.0 m away, how low will the bullet hit if aimed directly at a target 150.0 m away? The muzzle velocity of the bullet is 275 m/s. (b) Discuss qualitatively how a larger muzzle velocity would affect this problem and what would be the effect of air resistance.
Questions & Answers
QUESTION:
Problem 39PE
Gun sights are adjusted to aim high to compensate for the effect of gravity, effectively making the gun accurate only for a specific range. (a) If a gun is sighted to hit targets that are at the same height as the gun and 100.0 m away, how low will the bullet hit if aimed directly at a target 150.0 m away? The muzzle velocity of the bullet is 275 m/s. (b) Discuss qualitatively how a larger muzzle velocity would affect this problem and what would be the effect of air resistance.
ANSWER:
Solution
Step 1 of Step 3
We have to find the range, when the Gun is aimed at a height for compensating the effect of gravity. Hence we ignore the resistance of air hence we get the target at which the bullet reaches.