Purchase Solution

Velocity of projectiles: Bullet horizontal velocity, distance to ground

Not what you're looking for?

Ask Custom Question

Q. a 4kg object resting on a pole 8m tall is struck by a 20 gram bullet, which is moving horizontally at 200 m/sec. the bullet remains embedded in the object.

a. What horizontal velocity does the object acquire?
b. How far from the base of the pole does the object strike the ground?

Purchase this Solution
Solution Summary

With good explanations and calculations, the problem is solved.

Solution Preview

Please see the attached document.

Q. a 4kg object resting on a pole 8m tall is struck by a 20 gram bullet, which is moving horizontally at 200 m/sec. the bullet remains embedded in the object.
a. what horizontal velocity does the object acquire?
b. how far from the base of the pole does the object strike ...

Solution provided by:
Changping Wang, MA
Education
  • BSc , Wuhan Univ. China
  • MA, Shandong Univ.
Recent Feedback
  • "Your solution, looks excellent. I recognize things from previous chapters. I have seen the standard deviation formula you used to get 5.154. I do understand the Central Limit Theorem needs the sample size (n) to be greater than 30, we have 100. I do understand the sample mean(s) of the population will follow a normal distribution, and that CLT states the sample mean of population is the population (mean), we have 143.74. But when and WHY do we use the standard deviation formula where you got 5.154. WHEN & Why use standard deviation of the sample mean. I don't understand, why don't we simply use the "100" I understand that standard deviation is the square root of variance. I do understand that the variance is the square of the differences of each sample data value minus the mean. But somehow, why not use 100, why use standard deviation of sample mean? Please help explain."
  • "excellent work"
  • "Thank you so much for all of your help!!! I will be posting another assignment. Please let me know (once posted), if the credits I'm offering is enough or you ! Thanks again!"
  • "Thank you"
  • "Thank you very much for your valuable time and assistance!"
Purchase this Solution
Free BrainMass Quizzes
Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

Basic Physics

This quiz will test your knowledge about basic Physics.

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

View More Free Quizzes
Related BrainMass Solutions

  • Projectiles and Vectors

    b) At what horizontal distance from the firing point does it strike the ground? c) What is the speed as it strikes the ground? 2. a) A watermelon has the coordinates X = -6.0m, y = 6.0m, and z = 0.0m.

  • Acceleration, mass, force, constant speed, velocity, magnitude

    A) equal to its initial vertical velocity B) equal to its initial horizontal velocity C) equal to the magnitude of its initial velocity D) 0 A bullet is fired from ground level with a speed of 150 ms at an angle of 30.0 degrees above the horizontal

  • Calculations on an Exploding Projectiles

    4406 Calculations on an Exploding Projectiles An instrument carrying projectile accidentally explodes at the top of its trajectory. The horizontal distance between the launch point and the point of explosion is L.

  • Velocity and Distance Questions

    Answer: 39.46 m Calculations: s=vt=20.99*1.88=39.46 (m) A bullet is shot from a gun at 3.69 feet horizontal from the ground. How long does it take in seconds to hit the ground?

  • Deer Hunting Kinematics

    How far above ground level will the bullet be at the pinnacle? How long does it take the bullet to reach the impact point? What are the x & y components of the bullet's velocity just prior to striking the impact point?

  • Aiming with a gun - Motion in two dimensions

    We must compensate this distance by adjusting the angle of the gun. Note: The trajectory of the bullet is everywhere so nearly horizontal that it is a good approximation to model the bullet as fired horizontally in each case.

  • Kinematics

    40224 Distance traveled, velocity of a golf ball A golf ball is hit horizontally and went off with initial velocity of 2 m/s at a hill top (h=1m) Find x, the horizontal distance traveled and velocity of the golf ball just before it hits the ground (incluiding

  • Cannon Ball Trajectory

    Thus the time taken to reach the ground is given by (Upward positive) Or Or And thus the horizontal distance travelled after spread will be Hence the horizontal distance of the third piece from the point of projection will be

  • Calculations Using Newton's 2nd Law

    Which is the magnitude of a horizontal force over a bullet of 8.5g to obtain an acceleration of 18,500 meter/s2 with this acceleration ... which is the speed of the bullet after a 2.35 cm movement from the initial standing still point? 6.

View More Related Solutions