### Physics Problem: Bullet Penetration#### Problem Statement:A rifle with a barrel length of 60 cm fires a 14 g bullet with a horizontal speed of 350 m/s. The bullet strikes a block of wood and penetrates to a depth of 14 cm.**References and Resources:**- You may need to review [Page 131].- For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of [Ready for takeoff].---#### Part A**Question:**What resistive force (assumed to be constant) does the wood exert on the bullet?**Instructions:**Express your answer with the appropriate units.**Given Answer:**\[ f_k = -11812.5 \, \text{N} \]**Status:** Incorrect; Try Again---#### Part B**Question:**How long does it take the bullet to come to rest after entering the wood?**Instructions:**Express your answer with the appropriate units.**Given Answer:**\[ t = 0.000533 \, \text{S} \]---In Part A, students are required to calculate the constant resistive force exerted by the wood on the bullet. In Part B, they need to determine the time taken for the bullet to come to rest after it enters the wood. Note that these answers were found to be incorrect, and students are encouraged to reassess their calculations.For further help, students can review the relevant textbook page or consult the video tutorial for more detailed problem-solving strategies.

Answered: Image /qna-images/answer/a5700ede-01b9-4755-88c9-49620ba96817.jpg

A rifle with a barrel length of 60 cm fires a 14 g bullet with a horizontal speed of 350 m/s. The bullet strikes a block of wood and penetrates to a depth of 14 cm. You may need to review (Page 131). For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Ready for takeoff. Part A What resistive force (assumed to be constant) does the wood exert on the bullet? Express your answer with the appropriate units. fk = Submit O Part B μА - 11812.5 N Previous Answers Request Answer X Incorrect; Try Again How long does it take the bullet to come to rest after entering the wood? Express your answer with the appropriate units. μA t = 0.000533 ? S ?

A rifle with a barrel length of 60 cm fires a 14 g bullet with a horizontal speed of 350 m/s. The bullet strikes a block of wood and penetrates to a depth of 14 cm. You may need to review (Page 131). For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Ready for takeoff. Part A What resistive force (assumed to be constant) does the wood exert on the bullet? Express your answer with the appropriate units. fk = Submit O Part B μА - 11812.5 N Previous Answers Request Answer X Incorrect; Try Again How long does it take the bullet to come to rest after entering the wood? Express your answer with the appropriate units. μA t = 0.000533 ? S ?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A rifle with a barrel length of 60 cm fires a 15 g bullet with a horizontal speed of 350 m/s. The bullet strikes a block of wood and penetrates to a depth of 13 cm. You may need to review (Page). For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Ready for takeoff. Part A What resistive force (assumed to be constant) does the wood exert on the bullet? Express your answer with the appropriate units. Part B. How long does it take the bullet to come to rest after entering the wood? Express your answer with the appropriate units.
Compressed air is used to fire a 48 g ball vertically upward from a 1.0-m-tall tube. The air exerts an upward force of 1.0 N on the ball as long as it is in the tube. Part A How high does the ball go above the top of the tube? Express your answer to two significant figures and include the appropriate units. h = 3.24 Submit μα m Previous Answers Request Answer ? X Incorrect; Try Again; One attempt remaining
An 8.00 kg crate sits on an inclined plane that is inclined at 33.0 above the horizontal. The coefficient of kinetic friction between the crate and the surface of the plane is 0.300. A constant horizontal force F = 28.0 N is applied to the crate (Figure 1), and the crate moves down the plane. Part A If the crate is initially at rest, find its speed 2.00s after the force is applied? Express your answer with the appropriate units. HA Value Units Figure 1 of 1> Submit Request Answer Provide Feedback F 33.0°
A physics professor is pushed up a ramp inclined upward at an angle 30.0° above the horizontal as he sits in his desk chair that slides on frictionless rollers. Part A The combined mass of the professor and chair is 86.0 kg. He is pushed a distance 2.10 m along the incline by a group of students who together exert a constant horizontal force of 610N. The professor's speed at the bottom of the ramp is 1.85 m/s Use the work-energy theorem to find his speed at the top of the ramp. Express your answer in meters per second. V ΑΣφ ? V = m/s 國

It is friction that provides the force for a car to accelerate, so for high-performance cars the factor that limits acceleration isn't the engine; it's the tires. For the steps and strategies involved in solving a similar problem, you may view a Video Tutor Solution. Part A For typical rubber-on-concrete friction, what is the shortest time in which a car could accelerate from 0 to 50 mph? Suppose that us = 1.00 and k = 0.80. Express your answer with the appropriate units. 20 Submit μA Δt = |11.404 S Previous Answers Request Answer ? Review | Constants | Periodic Table X Incorrect; Try Again; 4 attempts remaining 7:54 PM
A 2.2×104 kg rocket has a rocket motor that generates 2.7×105 N of thrust. Part A What is the rocket's initial upward acceleration? Express your answer with the appropriate units. Part B At an altitude of 5000 m the rocket's acceleration has increased to 7.5 m/s². What mass of fuel has it burned? Express your answer with the appropriate units.
n the figure to the right, the hanging mass m) is 2.50kg. What would be the required mass on the table (M) for the system to move with an acceleration of a=7.25m/s²? part of your solution, you are required to fill out the following: As
A railroad handcar is moving along straight, frictionless tracks with negligible air resistance. In the following cases, the car initially has a total mass (car and contents) of 190 kg and is traveling east with a velocity of magnitude 4.90 m/s. Find the final velocity of the car in each case, assuming that the handcar does not leave the tracks. Part A An object with a mass of 20.0 kg is thrown sideways out of the car with a speed of 2.50 m/s relative to the car's initial velocity. Express your answer with the appropriate units. V = Submit Part B Value V = Request Answer Units Value An object with a mass of 20.0 kg is thrown backward out of the car with a velocity of 4.90 m/s relative to the initial motion of the car. Express your answer with the appropriate units. ? Units east east
A medium-sized jet has a 3.8-m-diameter fuselage and a loaded mass of 85,000 kg. The drag on an airplane is primarily due to the cylindrical fuselage, and aerodynamic shaping gives it a drag coefficient of 0.37. Part A How much thrust must the jet's engines provide to cruise at 240 m/s at an altitude where the air density is 1.9 kg/m³? Express your answer with the appropriate units.
Ⓒ Macmillan Learning A block of mass m = 6.23 kg is attached to a spring that is resting on a horizontal, frictionless table. The block is pushed into the spring, compressing it by 5.00 m, and is then released from rest. The spring begins to push the block back toward the equilibrium position at x = 0 m. The graph shows the component of the force (in newtons) exerted by the spring on the block versus the position of the block (in meters) relative to equilibrium. Use the graph to answer the questions. How much work W is done by the spring in pushing the block from its initial position at x = -5.00 m to x = 2.20 m? W = V = -59.04 Incorrect What is the speed of the block when t reaches x 2.20 m? 2.41 Incorrect Umax = What is the maximum speed max of the block? 3.63 J Incorrect m/s m/s 6 5. 4. 3. 2 ↓ L₁ -3. -4. -5. -6. F (N) x(m) $
A stockroom worker pushes a box with mass 10.8 kg on a horizontal surface with a constant speed of 3.50 m/s. The coefficients of kinetic and static friction between the box and the surface are 0.220 and 0.530, respectively. For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Delivering the goods. Part A What horizontal force must the worker apply to maintain the motion of the box? Express your answer in newtons. Assume that + direction coincides with the direction of velocity. ► View Available Hint(s) F₂ = 23.3 N Submit Previous Answers ✓ Correct Part B If the worker stops pushing, what will be the acceleration of the box? Express your answer in meters per second squared. Assume that +z direction coincides with the direction of velocity. ▾ View Available Hint(s) Hint 1. How to approach the problem In Part A, you would have found an expression for the motion of the box in the horizontal direction using Newton's second law. In…
A 2.6 kg block is attached to a horizontal rope that exerts a variable force Fx = (20 – 5x) N, where x is in m. The coefficient of kinetic friction between the block and the floor is 0.25. Initially the block is at rest at x = 0 m. Part A What is the block's speed when it has been pulled to x = 0.80 m? V = μĂ Value m S ?