A small explosive charge separates two sections of a stationarysatellite in
frictionless outer space. If the 100-kg smaller sectionâs resultingvelocity is 3 m/s,
what is the resulting velocity of the 350-kg larger section? Also,which section
has the greater kinetic energy?
4. A marble is shot at another marble that is at rest. The firstmarble stops, and the
second marble continues in a straight line with the same speed thatfirst marble
had initially. What is the ratio of the masses of the twomarbles?
5. A 4-g bullet from a .22 rifle is fired into the 1.2-kg woodenblock of a ballistic
pendulum, causing it to swing back and rise vertically 60 cm. Findthe speed of
the bullet just before impact.
6. A 1.00-kg steel ball is dropped from a height of 2.00 m, and itreaches a max
height of 1.5 m after the 1st bounce. How much of its kineticenergy did it lose in
the collision with the floor?
7. Two objects moving in a straight line toward each other undergoan elastic
collision. The one approaching from the left has a mass of 2-kg anda velocity of
6 m/s, while the other has a mass of 4-kg and a velocity of 3 m/s.What are the
speeds and directions of the objects after the collisions?
A small explosive charge separates two sections of a stationarysatellite in
frictionless outer space. If the 100-kg smaller sectionâs resultingvelocity is 3 m/s,
what is the resulting velocity of the 350-kg larger section? Also,which section
has the greater kinetic energy?
4. A marble is shot at another marble that is at rest. The firstmarble stops, and the
second marble continues in a straight line with the same speed thatfirst marble
had initially. What is the ratio of the masses of the twomarbles?
5. A 4-g bullet from a .22 rifle is fired into the 1.2-kg woodenblock of a ballistic
pendulum, causing it to swing back and rise vertically 60 cm. Findthe speed of
the bullet just before impact.
6. A 1.00-kg steel ball is dropped from a height of 2.00 m, and itreaches a max
height of 1.5 m after the 1st bounce. How much of its kineticenergy did it lose in
the collision with the floor?
7. Two objects moving in a straight line toward each other undergoan elastic
collision. The one approaching from the left has a mass of 2-kg anda velocity of
6 m/s, while the other has a mass of 4-kg and a velocity of 3 m/s.What are the
speeds and directions of the objects after the collisions?
