5. A lumberjack (mass 98 kg) is standing at rest on one end of a floating log (mass 230 kg) that is also at rest. The lumberjack runs to the other end of the log, attaining a velocity of 3.6 m/s relative to the shore, and then hops on to an identical floating log that is initially at rest. Neglecting any friction, (a) what is the velocity of the first log just before the lumberjack jumps off

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

How do you tell if someone actually cares about you? and just say they do?