Calculating the Time of a Bullet's Flight from a Rifle Aimed Horizontally

  • Thread starter Thread starter spirit2014
  • Start date Start date
  • Tags Tags
    Flight Time
AI Thread Summary
To calculate the time of a bullet's flight from a horizontally aimed rifle, one must consider the principles of projectile motion. The bullet drops 1.90 cm due to gravity while traveling 30 m horizontally. Using the equation for vertical motion, the time can be determined by solving for the time it takes to fall 1.90 cm under gravitational acceleration. The horizontal distance and the constant horizontal velocity of the bullet will also be factored in to find the total time of flight. Understanding these concepts is crucial for solving the problem accurately.
spirit2014
Messages
1
Reaction score
0
This is a four part problem, and I need help starting it. It states that a rifle is aimed horizontally at a target 30 m away, and the bullet hits the target 1.90 cm below the aiming point. How do I find the time of bullet's flight?
 
Physics news on Phys.org
What do you understand about projectile motion?
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Back
Top