Which of these situations describe the motion of object A, moving with a constant velocity where the net force is zero?
1. A car is moving along a straight road at a constant speed.
2. A car is moving along a straight road while slowing down.
3. A car is moving along a straight road while speeding up.
4. A hockey puck slides along a smooth (i.e., frictionless) icy surface.
5. A hockey puck slides along a rough concrete surface.
6. A c̫o̫ςκroach is speeding up from rest.
7. A rock is thrown horizontally; air resistance is negligible.
8. A rock is thrown horizontally; air resistance is substantial.
9. A rock is dropped vertically; air resistance is negligible.
10. A rock is dropped vertically; air resistance is substantial.
What if the object B is moving to the right, with the net force acting to the left, with means the acceleration is negative, so it's not a constant velocity?
Now what if the object C was falling because the net force is directed down?
Okay, so I know that object A would be both 1 and 4, and that's it. So what about object B and C?
Ha and for object b it's 2 and 5...so what about c?
Nevermind now lol. I know the answer to C is only 7...so....the first to post WHY for A will receive the best answer.
3 Answers
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an object in motion tends to stay in motion unless acted upon by another force. you know, one of newton's law
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It's Newton's first law of motion. A moving object will continue moving in a straight line at a constant speed, and a stationary object will remain at test, unless acted on by an unbalanced force.
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evaluate that no historic events (a minimum of those historic to Europeans) that befell in the Western Hemisphere might want to have befell till such time as somebody else got here upon united states.
