7. Valentina, the Russian Cosmonaut, goes outside her ship for a space walk, but when she is floating motionless, 15 m from the ship, her tether catches on a sharp piece
of metal and is severed. Valentina tosses her 2.0 kg camera away from the
spaceship with a speed of 12 m/s.
a. How fast will Valentina, whose mass is now 68 kg, travel toward the spaceship?
b. Assuming the spaceship remains at rest with respect to Valentina, how long will
it take her to reach the ship?
2

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

prndulum needs thread, weight clock to time swings