Question

A rifle is aimed horizontally at a target 55.0 m away. The bullet hits the target 2.90 cm below the aim point. You may want to review (Pages 86 - 90) . Part A What was the bullet's flight time? Express your answer with the appropriate units. nothing nothing Request Answer Part B What was the bullet's speed as it left the barrel? Express your answer with the appropriate units. nothing nothing Request Answer

Answer 1

a) t = 0.07615s

b) V = 722.26m/s

Step-by-step explanation:

For movement on the y-axis:

`\Delta Y = Vy*t-(g*t^2)/(2)` Where ΔY = -0.029m; Vy = 0

Solving for t:

t = 0.07615s

Now, having the flight time of the bullet, we calculate the speed with x-axis equations:

X = V*t where X=55m; t = 0.07615s Solving for V:

V = 722.26m/s