A rifle shoots a 4.30 g bullet out of its barrel. The bullet has a muzzle velocity of 985 m/s just as it leaves- the barrel. Assuming a constant horizontal acceleration over a distance of 43.0 cm starting from rest, with r a a friction between the bullet and the barrel. a. What force does the rifle exert on the bullet while it is in the barrel? b. Draw a free-body diagram of the bullet while it is in the barrel. c. Draw a free-body diagram of the bullet just after it has left the barrel. d. How many g 's of acceleration does the rifle give this bullet? For how long a time is the bullet in the barrel? e.

A rifle shoots a 4.30 g bullet out of its barrel. The bullet has a muzzle velocity of 985 m/s just as it leaves- the barrel. Assuming a constant horizontal acceleration over a distance of 43.0 cm starting from rest, with r a a friction between the bullet and the barrel. a. What force does the rifle exert on the bullet while it is in the barrel? b. Draw a free-body diagram of the bullet while it is in the barrel. c. Draw a free-body diagram of the bullet just after it has left the barrel. d. How many g 's of acceleration does the rifle give this bullet? For how long a time is the bullet in the barrel? e.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 18PQ: A ball hanging from a light string or rod can be used as an accelerometer (a device that measures...

See similar textbooks

Similar questions

(a) Find an equation to determine the magnitude of the net force required to stop a car of mass m, given that the initial speed of the car is v0 and the stopping distance is x . (b) Find the magnitude of the net force if the mass of the car is 1050 kg, the initial speed is 40.0 km/h, and the stopping distance is 25.0 m.
Two forces, F1=(6.00i4.00j)N and F2=(3.00i+7.00j)N, act on a particle of mass 2.00 kg that is initially at rest at coordinates (2.00 m, + 4.00 m). (a) What are the components of the particles velocity at t = 10.0 s? (b) In what direction is the particle moving at t = 10.0 s? (c) What displacement does the particle undergo during the first 10.0 s? (d) What are the coordinates of the particle at t = 10.0 s?
A ball hanging from a light string or rod can be used as an accelerometer (a device that measures acceleration) as shown in Figure P5.18. What force causes the deflection of the ball? Is the cart in the lower part of the photo an inertial reference frame? How can the balls deflection be used to find the carts acceleration? In which direction is the cart accelerating? Explain your answers.
Starting from rest, a rectangular toy block with mass 300 g slides in 1.30 s all the way across a table 1.20 m in length that Zak has tilted at an angle of 42.0 to the horizontal. a. What is the magnitude of the acceleration of the toy block? b. What is the coefficient of kinetic friction between the block and the table? c. What are the magnitude and direction of the friction force acting on the block? d. What is the speed of the block when it is at the end of the table, having slid a distance of 1.20 m?
(a) A car with a mass of 850 kg is moving to the right with a constant speed of 1.44 m/s. What is the total force on the car? (b) What is the total force on the car if it is moving to the left?
Draw a free-body diagram for the burglar, who is shown at rest while sneaking through a chimney in Figure P6.6.
Two teams of nine members each engage in tug-of-war. Each of the first team’s members has an average mass of 68 kg and exerts an average force of 1350 N horizontally. Each of the second team’s members has an average mass of 73 kg and exerts an average force of 1365 N horizontally. (a) What is magnitude of the acceleration of the two teams, and which team sins? (b) What is the tension in the section of rope between the teams?
While in space far from any gravitational body, a 120-kg astronaut pushes off a 2400 kg space vehicle. The contact lasts .25 seconds, after which the astronaut is traveling 1 m/s a) what's the magnitude of the pushing force? b) what's the speed of the vehicle after the contact has ended? c) how is Newton's 3rd law demonstrated?
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 N on him. The mass of the losing player plus equipment is 90.0 Kg, and he is accelerating at 1.20 m/s2 backward. a) What is the force friction between losing player's feet and grass? b) What force does the winning player exert on the ground to move forward if his mass plus equipment is 110Kg? c) Draw a sketch of the situation showing the system of interest used to solve each part. For this situation draw a free body diagram and write the net force equation.
Someone at the other end of the table asks you to pass the salt. Feeling quite dashing, you slide the 50.0-g salt shaker inthat direction, giving it an initial speed of 1.15 m>s. (a) If the shaker comes to rest with constant acceleration in 0.840 m,what is the coefficient of kinetic friction between the shaker and the table? (b) How much time is required for the shakerto come to rest if you slide it with an initial speed of 1.32 m>s?
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 N on him. The mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20 m/s backward. (a) What is the force of friction between the losing player’s feet and the grass? (b) What force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) Draw a sketch of the situation showing the system of interest used to solve each part. For this situation, draw a free-body diagram and write the net force equation.
a) A particular 1.89 × 10^7 kg train is able to get up to 25 m/s in a 58 second interval,starting from rest on straight, horizontal track. If the acceleration of the train isconstant, what is the magnitude of the net force? b) During this interval, find the magnitude of the horizontal force and the vertical forceexerted on a 77 kg passenger by the train? c) Find the magnitude of the horizontal and vertical force exerted on the train by thepassenger from part (B).