Three masses are moving along the x-axis. Their masses and velocities are m1 = m with v1 = v, m2 = 2m with v2 = 2v, and m3 = 3m with v3 = –3v (the minus sign indicating this velocity is in the negative x-direction). The three masses collide and stick together in a completely inelastic collision. What is the resultant velocity of the combined mass?
a. 0, since their combined momentum is zero.
b. –2v/3
c. 14v/3
d. –v
b
You might also like to view...
In a hypothetical stream flowing downslope, stream discharge doubles while the channel remains the same size and shape. For this situation, what will happen to the stream's speed?
What will be an ideal response?
A container of hydrogen gas has the same temperature as a container of denser oxygen gas. The gas atoms having the greater average kinetic energy are the
1) hydrogen, 2) oxygen, 3) both the same, while the gas atoms having the greater average velocity are the 4) hydrogen. 5) oxygen. 6) both the same.
What is the angle of dip?
How does the study of quasars reveal information of the history of the universe?
a. Typical quasars are very distant so we can view how galaxy evolution occurred in the past. b. Quasars contain stars of all ages. c. Quasars typically act as host galaxies for gravitational lensing. d. Quasars generate their energy in very small volumes of space