Agun with a muzzle velocity of 100 m/s is fired horizontally from a tower. neglecting air resistance, how far downrange will the bullet be 8 seconds later? g

313.6 m downward

Explanation:

The distance covered by the bullet along the vertical direction can be calculated by using the equation of motion of a projectile along the y-axis.

In fact, we have:

where

y(t) is the vertical position of the projectile at time t

h is the initial height of the projectile

is the initial vertical velocity of the projectile, which is zero since the bullet is fired horizontally

t is the time

a = g = -9.8 m/s^2 is the acceleration due to gravity

We can rewrite the equation as

where the term on the left, , represents the vertical displacement of the bullet. Substituting numbers and t = 8 s, we  find

So the bullet has travelled 313.6 m downward.

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