Question
Asked Nov 4, 2019

A 4.2-g bullet leaves the muzzle of a rifle with a speed of 340 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.77-m-long barrel of the rifle? 

check_circleExpert Solution
Step 1

Given:

m 4.2 gm
m 4.2x10 kg
v =340 m/s
u 0 m/s
s 0.77 m
help_outline

Image Transcriptionclose

m 4.2 gm m 4.2x10 kg v =340 m/s u 0 m/s s 0.77 m

fullscreen
Step 2

According to Newton equation of motion

у?
— и* + 2as
у? —и?
2s
(340)-(0)
а:
2x0.77
а-75064.9350 m/s?
help_outline

Image Transcriptionclose

у? — и* + 2as у? —и? 2s (340)-(0) а: 2x0.77 а-75064.9350 m/s?

fullscreen
Step 3

Force on bu...

F =ma
F 4.2x10 x75064.9350
F 315.27 N
help_outline

Image Transcriptionclose

F =ma F 4.2x10 x75064.9350 F 315.27 N

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour*

See Solution
*Response times may vary by subject and question
Tagged in

Science

Physics

Related Physics Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: 22. QC A roller coaster at the Six Flags Great America amusement park in Gurnee, llinois, incorpo ra...

A: Part a:Given that:The velocity at the top of the drop (V) = 13 m/sThe centripetal acceleration exper...

question_answer

Q: A uniform plank of length 5.35 m and mass 26.9 kg rests horizontally across two horizontal bars of a...

A: suppose, the right scaffold part is free to walk by the painter.the distance from the center of mass...

question_answer

Q: The heaviest invertebrate is the giant squid, which is estimated to have a weight of about 0.19 tons...

A: Click to see the answer

question_answer

Q: A point charge of -4.00 nC is located at (0, 1.00) m. What is the magnitude ofthe electric field due...

A: Given, 

question_answer

Q: 4- An electron in an x-ray machine is accelerated through a potential difference of 5*104 V before i...

A: 4. Change in electric potential energy is,

question_answer

Q: A 55-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is 1...

A: The change in potential energy of the pole vaulter will be equal to her change in kinetic energy.Ass...

question_answer

Q: A skier of mass 64 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to...

A: Given:Mass of the skier, m = 64 kgSlope = 30 degreesConstant velocity of the skier upto the slope, v...

question_answer

Q: Two workers are sliding 390 kg crate across the floor. One worker pushes forward on the crate with a...

A: Consider two workers sliding the crate of mass m, one by pushing in right hand(say) direction with f...

question_answer

Q: Could you kindly explain and solve question 3 for me?

A: Problem 31)According to the kinematics equation of motion, the velocity of the particle at position ...