why exactly is it like this ? the answer just says we need to pull it horizontal
ID: 1648112 • Letter: W
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why exactly is it like this ? the answer just says we need to pull it horizontally but cant really get the reasoning behind. is it because the dishes are on the cloth and thus is the same system and since they have extra contact once we pull it upwards the dishes pretty much fly off ? cant really understand 59. Can sing 60. Wh 45. In doing the tablecloth pull demonstration of inertia of Figure 2.4, why is it important that you pull slightly downward when you attempt to whip the cloth from beneath the dishes? (What occurs if you pull slightly upward?) 46. In tearing a paper towel or plastic bag from a roll, why is 61. A a sharp jerk more effective than a slow pull? 47. If you're in a car at rest that gets hit from behind, you 62. can suffer a serious neck injury called whiplash. What does whiplash have to do with Newton's first law?Explanation / Answer
45. The principle of inertia states that any obect resists the chance of its states, means an oject in motion tend to remain in motion and an object at rest tend to remain at rest .
So if tablecloth is pulled(wiped) then although the table cloth becomes in motion but the objects kept on this tend to remain at rest and and if the cloth is pulled downward then the objects on the cloth will remained on the table.
But if the clothis pulled upward then an upward force will be exerted on the objects kept on the cloth hence this external force will affect their inertia and they will not remain at rest on the table.
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