The answers that i think are correct have ***** next to them. If anyone knows the right answers please share your thoughts. Thank you. 1. A ball is thrown downward (not dropped) from the top of a tower. After being released, its downward acceleration will be Choices: greater than g. exactly g. ***** less than g. none of the above 2. A rock is thrown up at a 45° angle. Neglecting air resistance, the x-component of the rock's velocity is Choices: greatest just after the rock is thrown greatest at the top of the rock's flight greatest just before the rock hits the ground always the same ***** 3. Velocity measurements Choices: differ in defferent frames of reference. ***** are the same in any Galilean reference frame. are always largest in the reference frame of the Earth. are always smallest in the reference frame of the Earth. 4. Which of these laws is not one of Newton's laws? Choices: Action force equals reaction force F = ma All objects fall with equal acceleration ***** Objects at rests stay at rest, etc. 5. Inertia Choices: expresses the tendency of bodies to maintain their state of motion. ***** is Newton's third law. none of the above 6. If vector B is added to vector A, the resultant vector A+B has a magnitude A+B when A and B are Choices: perpendicular to each other oriented in the same direction ***** oriented in opposite directions in any direction relative to each other Thank you.