Elastic Collisions: A 320-g air track cart traveling at 1.25 m/s suddenly collides elastically with a stationary 270-g cart. What is the speed of the 320-g cart just after the collision?
A. 0.68 m/s
B. 0.11 m/s
C. 0.21 m/s
D. 1.4 m/s
E. 1.1 m/s
Answer: B
You might also like to view...
Which of the following statements is not one of Newton's Laws of Motion?
A) What goes up must come down. B) The rate of change of momentum of an object is equal to the net force applied to the object. C) In the absence of a net force acting upon it, an object moves with constant velocity. D) For any force, there always is an equal and opposite reaction force.
Astigmatism is usually due to
A) the cornea or lens being out of round. B) accommodation. C) myopia. D) missing rods. E) hyperopia.
If you are in the Moon's umbral shadow, then you are witnessing
A) nighttime. B) some kind of lunar eclipse. C) a total solar eclipse. D) a partial solar eclipse. E) a total lunar eclipse.
The time for one complete cycle of a periodic process to take place is called
a. amplitude. b. frequency. c. period. d. wavelength. e. speed.