Ch.7, 7 Two billiard balls of equal mass undergo a perfectly elastic head-on collision. Part A...
Ch.7, 7
Two billiard balls of equal mass undergo a perfectly elastic head-on collision. Part A If one ball's initial speed was 2.50 m/s , and the other's was 4.20 m/s in the opposite direction, what will be their speeds after the collision?
V1, V2?
Homework Answers
Given that both balls have equal mass
During collision momentum is conserved
Initial momentum =final momentum
----------------(1)
=====================
Collision is perfectly elastic
so kinetic energy is conserved
Initial kinetic energy =final kinetic energy
Put (1) in above equation
Solve the quadratic equation using a calculator
ANSWER: 
====================
Put Value of v1 in (1)
ANSWER: 
=======================
Add Answer to:
Ch.7, 7
Two billiard balls of equal mass undergo a perfectly elastic
head-on collision. Part A...
Two billiard balls of equal mass undergo a perfectly elastic head-on collision. If one ball's initial...
Two billiard balls of equal mass undergo a perfectly elastic head-on collision. If one ball's initial speed was 1.60 m/s , and the other's was 3.60 m/s in the opposite direction, what will be their speeds after the collision?
Two billiard balls of equal mass undergo a perfectly elastic head-on collision. If one ball's initial...
Two billiard balls of equal mass undergo a perfectly elastic head-on collision. If one ball's initial speed was 1.70 m/s , and the other's was 2.20 m/s in the opposite direction, what will be their speeds after the collision?
Two billiard balls of equal mass undergo a perfectly elastic head-on collision. If one ball's initial...
Two billiard balls of equal mass undergo a perfectly elastic head-on collision. If one ball's initial speed was 1.70 m/s , and the other's was 5.00 m/s in the opposite direction, what will be their speeds after the collision? Enter your answers numerically separated by a comma.
Two billiard balls, a cue ball and an eight ball, of equal mass undergo a perfectly...
Two billiard balls, a cue ball and an eight ball, of equal mass undergo a perfectly elastic head-on collision. If the cue ball’s initial speed was 8.8 m/s, and the eight ball's was 8.3 m/s in the opposite direction, what will be the velocity of the eight ball after the collision? Consider the initial direction of the cue ball to be the positive direction.
Two billiard balls of equal mass undergo an elastic equation. Ball 2 is initially at rest...
Two billiard balls of equal mass undergo an elastic equation. Ball 2 is initially at rest and ball 1 has a speed of 12m/s. After the collision, both balls move at an angle of 37 degrees and 53'degrees, respectively, with respect to its initial direction (figl) Find the speed of each ball after the collision.
Two billiard balls undergo an elastic collision as shown in the figure below. Ball 1 is...
Two billiard balls undergo an elastic collision as shown in the figure below. Ball 1 is initially traveling along x with a speed of 15 m/s, and ball 2 is at rest. After the collision, ball 1 moves away with a speed of 7.5 m/s at an angle θ-60°. (For the following questions, assume the mass of ball 1 is equal to the mass of ball 2.) Ball Ball 1 Ball 21/<θ li (a) Find the speed of ball 2...
Two billiard balls of equal mass move at right angles and meet at the origin of...
Two billiard balls of equal mass move at right angles and meet at the origin of an xy coordinate system. Ball A is moving upward along the y axis at vA = 2.7 m/s , and ball B is moving to the right along the x axis with speed vB = 5.5 m/s . After the collision, assumed elastic, ball B is moving along the positive y axis(Figure 1). Part A- What is the final direction of ball A? Part...
Question 7 5 pts (5 points) Two billiard balls, one moving at 0.5 m/s, the other...
Question 7 5 pts (5 points) Two billiard balls, one moving at 0.5 m/s, the other at rest, undergo a perfectly elastic collision. If the masses of the billiard balls are equal and the speed of the stationary one after the collision is 0.5 m/s, then what is the speed of the other ball after the collision? O Om/s O 1.5 m/s O 0.5 m/s O none of the above O 1 m/s
A billiard ball hits a stationary billiard ball. (The balls have equal mass.) After the collision...
A billiard ball hits a stationary billiard ball. (The balls have equal mass.) After the collision the first ball moves at an angle of 30? to its original direction at a speed of 0.8 m/s. The other ball moves at an angle of 60? to the original direction of the first ball. Find the original speed of the first ball and the speed of the second ball after the collision.
63. Two billiard balls of identical mass move toward each other. Assume that the collision between...
63. Two billiard balls of identical mass move toward each other. Assume that the collision between them is perfectly elastic. If the initial velocities of the balls are 30 cm/s and -20 cm/s, assume friction and rotation are unimportant What are the velocities of the balls after the collision? Find the final velocity of the two balls if the ball initial velocity of -20 cm/s has a mass equal to one half of the ball with initial velocity 30 cm/s
Two billiard balls of equal mass undergo an elastic equation. Ball 2 is initially at rest and ball 1 has a speed of 12m/s. After the collision, both balls move at an angle of 37 degrees and 53'degrees, respectively, with respect to its initial direction (figl) Find the speed of each ball after the collision.
Two billiard balls undergo an elastic collision as shown in the figure below. Ball 1 is initially traveling along x with a speed of 15 m/s, and ball 2 is at rest. After the collision, ball 1 moves away with a speed of 7.5 m/s at an angle θ-60°. (For the following questions, assume the mass of ball 1 is equal to the mass of ball 2.) Ball Ball 1 Ball 21/<θ li (a) Find the speed of ball 2...
Question 7 5 pts (5 points) Two billiard balls, one moving at 0.5 m/s, the other at rest, undergo a perfectly elastic collision. If the masses of the billiard balls are equal and the speed of the stationary one after the collision is 0.5 m/s, then what is the speed of the other ball after the collision? O Om/s O 1.5 m/s O 0.5 m/s O none of the above O 1 m/s
63. Two billiard balls of identical mass move toward each other. Assume that the collision between them is perfectly elastic. If the initial velocities of the balls are 30 cm/s and -20 cm/s, assume friction and rotation are unimportant What are the velocities of the balls after the collision? Find the final velocity of the two balls if the ball initial velocity of -20 cm/s has a mass equal to one half of the ball with initial velocity 30 cm/s
Most questions answered within 3 hours.
-
(CO 2) A field can be added to a report to
values for two or more...
asked 42 minutes ago -
Identify 3 research scenarios that might provide a low,
medium, and high degree of variability in...
asked 1 hour ago -
how
does gravity affect the trajectory of projectile? what would be the
shape of the trajactory...
asked 1 hour ago -
Two small plastic spheres are given positive electrical charges.
When they are a distance of 15.4...
asked 2 hours ago -
An acidic solution containing gold ions is
electrolyzed, producing gaseous oxygen (from water) at the anode...
asked 2 hours ago -
Assume that the population of Mexico is 128
million and that the population increases 1.01
percentannually....
asked 3 hours ago -
Can someone please help me add appropriate descriptive
comments to each line of code in the...
asked 3 hours ago -
Romeo wishes to throw a bouquet of flowers to Juliet, who is on
a second-story balcony,...
asked 4 hours ago -
Why is QE a controversial monetary policy tool.
A. It may lead to excessive inflation.B. By...
asked 4 hours ago -
Principles of Programming midterm study guide help!
1.)
______ Which of the following would reference the...
asked 4 hours ago -
A finite potential well has depth U0 = 2.78 eV . What is the
penetration distance...
asked 5 hours ago -
1. The bus bars of a power station are in two sections A and B
separated...
asked 5 hours ago