A bullet traveling horizontally at a speed of 350 hits a board perpendicular to its surface, passes through and emerges on the other side at a speed of 230 .
If the board is 3.80 thick, how long does the bullet take to pass through it?
To calculate the time it takes for the bullet to pass through the board, we can use the formula:
t = d / v
Where:
t is the time taken (unknown)
d is the distance traveled (thickness of the board)
v is the speed of the bullet
Given:
d = 3.80 cm
v = 350 m/s (initial speed of the bullet)
First, we need to convert the distance from cm to meters:
d = 3.80 cm = 3.80 / 100 m = 0.0380 m
Now we can plug the values into the equation and solve for t:
t = 0.0380 m / 350 m/s
t ≈ 0.0001086 s
Therefore, the bullet takes approximately 0.0001086 seconds (or 108.6 microseconds) to pass through the board.