College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Find the momentum of the propellant gases in a coordinate system attached to the earth as they leave the muzzle of the rifle. p=
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- For a ballistic pendulum, if the length L = 1.64 meter, angle of deflection from vertical θ = 20.8 degree, the mass of the bullet m = 12.1 gram, and the mass of the catcher M = 646 gram, the velocity (m/s) of the bullet isarrow_forwardAn object, with mass 88 kg and speed 18 m/s relative to an observer, explodes into two pieces, one 4 times as massive as the other; the explosion takes place in deep space. The less massive piece stops relative to the observer. How much kinetic energy is added to the system during the explosion, as measured in the observer's reference frame?arrow_forwardAn object has a kinetic energy of 310 J and a momentum of magnitude 28.1 kg · m/s. (a) Find the speed of the object.(b) Find the mass of the object.arrow_forward
- A ball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. If the ball hits the floor with a speed of 3.50 m/s and rebounds with a speed of 1.50 m/s, determine the following. (a) Magnitude of the change in the ball's momentum in kg · m/s (Let up be in the positive direction.) (b) Change in the magnitude of the ball's momentum in kg · m/s (Let negative values indicate a decrease in magnitude.) (c) Which of the two quantities calculated in parts (a) and (b) is more directly related to the net force acting on the ball during its collision with the floor? 1. The magnitude of the change in the ball's momentum2. Neither are related to the net force acting on the ball. 3. They both are equally related to the net force acting on the ball.4. The change in the magnitude of the ball's momentumarrow_forwardProblem 9: A baseball of mass mj = 0.39 kg is thrown at another ball hanging from the ceiling by a length of string L = 1.35 m. The second ball m2 = 0.79 kg is initially at rest while the baseball has an initial horizontal velocity of V, = 3.5 m/s. After the collision the first baseball falls straight down (no horizontal velocity). Randomized Variables V, m1 = 0.39 kg m2 = 0.79 kg L= 1.35 m V1 = 3.5 m/s m, m,arrow_forwardNeeds Complete typed solution with 100 % accuracy.arrow_forward
- An object A moving with velocity v collides with a stationary object B. After the collision, A is moving with velocity 2 1 v and B with velocity 3 2 v. Find the ratio of their masses. If, instead of bouncing apart, the two bodies stuck together after the collision, with what velocity would they then move?arrow_forwardA ball of mass 179 g is thrown with an initial velocity of 25 m/s at an angle of 30° with the horizontal direction. Ignore air resistance. What is the momentum of the ball after 0.8 s? (Do this problem by finding the components of the momentum first and then constructing the magnitude and direction of the momentum vector from the components. Find the magnitude in kg · m/s and the direction in degrees counterclockwise from the +x-axis. Assume the +x-axis points horizontally to the right.) magnitude _____ kg · m/s direction ______ ° counterclockwise from the +x-axisarrow_forwardA ball of mass 191 g is thrown with an initial velocity of 25 m/s at an angle of 30° with the horizontal direction. Ignore air resistance. What is the momentum of the ball after 0.6 s? (Do this problem by finding the components of the momentum first and then constructing the magnitude and direction of the momentum vector from the components. Find the magnitude in kg · m/s and the direction in degrees counterclockwise from the +x-axis. Assume the +x-axis points horizontally to the right.) V = (25 m/s)û 30° magnitude kg · m/s direction ° counterclockwise from the +x-axisarrow_forward
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