masterpiece asked: 1. In which one of the following situations is linear momentum not conserved?
A) A bomb suspended by a string explodes into one hundred fragments.
B) A bowling ball collides with ten pins.
C) A golf ball is struck by a club.
D) An astronaut floating in space throws a hammer away and subsequently moves in the opposite direction.
E) A tree limb is struck by lightning and falls to the ground.
2. A stationary bomb explodes in gravity-free space breaking into a number of small fragments. Which one of the following statements concerning this event is true?
A) Kinetic energy is conserved in this process.
B) The fragments must have equal kinetic energies.
C) The sum of the kinetic energies of the fragments must be zero.
D) The vector sum of the linear momenta of the fragments must be zero.
E) The velocity of any one fragment must be equal to the velocity of any other fragment.
How To Administer Cpr
Share and Enjoy:
These icons link to social bookmarking sites where readers can share and discover new web pages.