A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s and directs its center on a path tangent to the surface of the target ball having the same mass as the cue ball
After the collision (on a frictionless table) the initially-stationary ball moves with a speed of 4.82 m/s. After the collision, the new speed of the cue ball and the relative direction of the balls are closest to A) 2.79 m/s, at 90° to each other.
B) 2.79 m/s, at 60° to each other.
C) 8.34 m/s, at 90° to each other.
D) 8.34 m/s, at 60° to each other.
A
You might also like to view...
The CMB is perfectly uniform
a. True b. False Indicate whether the statement is true or false
Which of the following is thought to explain many of the “exceptions to the rules” of our solar system?
a. the heavy bombardment b. giant impacts c. the frost line d. conservation of angular momentum e. the solar nebula
One mole of an ideal gas at 1.00 atm and 0.00°C occupies 22.4 L. How many molecules of an ideal gas are in one cm3 under these conditions?
a. 28.9 c. 2.69 × 10^19 b. 22,400 d. 6.02 × 10^23
A solenoid with an air core has a magnetic field pointing along its axis in the positive x direction. This solenoid is then filled with a diamagnetic material. What changes will this make to the magnetic field along the axis of the solenoid?
A) The field will point in the -x direction with a smaller magnitude. B) The magnetic field will not change. C) The field will point in the same direction with a larger magnitude. D) The field will have the same magnitude but will now point in the -x direction. E) The field will point in the same direction with a smaller magnitude.