At an instant when a particle of mass 80 g has a velocity of 25 m/s in the positive y direction, a 75-g particle has a velocity of 20 m/s in the positive x direction. What is the speed of the center of mass of this two-particle system at this instant?
a. 16 m/s
b. 45 m/s
c. 23 m/s
d. 20 m/s
e. 36 m/s
A
You might also like to view...
What possible use could a weed be? Explain how weeds can be useful, starting with your definition of weed
What will be an ideal response?
The mass of a single galaxy might be found by
a. the double galaxy method. b. the rotation curve method. c. the cluster method. d. any of the methods (i.e., double galaxy, rotation curve, cluster) e. none of these methods.
Astronomers believe that the hydrogen atoms in your body were created
a. in the planets. b. inside the stars. c. in the Sun. d. in the big bang. e. in neutron stars.
When a girl swings in a tire swing, the tangential acceleration in the rope
A. is the greatest at the highest point of the motion. B. is the greatest at the lowest point of the motion. C. is the greatest at a point neither highest nor lowest. D. is constant.