1) What is the difference between Mass and weight? Answer: Mass is a measure of
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Question
1) What is the difference between Mass and weight? Answer: Mass is a measure of how much matter an object has whereas, weight is a measure of how strongly gravity pulls on that matter. 2) If objects on earth do not keep moving once they're put into motion, why not, and what's the difference with objects in space? Answer: 3) If the force of friction the push or pull force, will the object slow down or come to a stop? Answer 4) If an object is at equilibriun, whnt is the sum of all the forces acting on it equal to? Answer: 5) What is the acceleration of a ball after it has been thrown into the air? Answer: 6) How fast is a ball thrown straight up traveling at the very top of its path? AnswerExplanation / Answer
2. It does not keep moving because of the frictional force or the air resistance in the earth will cause it to stop but in space there will not be any such forces so it will keep moving by the law of inertia.
3. If the force of friction is equal to the frictional force and all other forces are assumed to be zero then there will no net acceleration in any direction so the object will continue to move(if it's moving) with a constant velocity or stop(if it is stopped).
4. The sum of all forces at equilibrium is always zero.
5. If a ball is thrown into air it's acceleration will be equal to the acceleration due to gravity, if it's going upward g will be in -ve direction of velocity and if it's coming downwards the g will be in the direction of velocity.
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