Query: You and a buddy are getting into an egg toss contest. The aim of this contest is to toss an egg the best distance with out it cracking or breaking open. Describe your technique for catching eggs which were thrown a protracted distance with out them breaking when it comes to physics. Use phrases like impulse and momentum.
Pupil’s Response was:
When making an attempt to catch an egg with the furthest distance, there are a number of issues to bear in mind. Issues resembling the load of the egg, the space you might be throwing it, and the way you catch the egg can change the outcomes drastically.
First off, when throwing one thing as small as an egg, one should remember that the additional the space, the extra power is exerted into throwing the egg. With extra power exerted into the egg, the extra momentum there shall be. That is particularly vital when catching the egg, as a result of catching it the fallacious method may end up in it breaking.
The catching of the egg may be notably tough, as a result of the egg may be very brittle and fragile. With the intention to cut back the momentum, you could seize the egg by its sides so it doesn’t splatter in your hand. The egg’s impulse which is it is common power over a time period, have to be decreased with a view to guarantee a protected touchdown for the egg. By grabbing the egg by the perimeters, you might be decreasing it is momentum and impulse to later make the egg fall into your palm.
Tutor’s response was: To win the competitors, we have to throw the egg as excessive as we will. So when it fall down, it should have a excessive velocity as properly. Mass of the egg is fastened. So if we have to win this competitors, we ought to be ready to face a excessive momentum that we’ll obtain when it come down. Let’s imagine that we take time “t” to catch this egg. So the power whereas catching the egg shall be “F” given by:
So F= m(vf-vi)/t
And we’ve got already seen that mass m is fastened.
Additionally Vf =0 as a result of the egg lastly involves relaxation after catching.
Vi is the speed which was there simply earlier than catching the egg and we’ve got already seen that, it will likely be very excessive if we wish to win the competitors.
Now, with a view to lower the power, the one factor that we will do is to maintain the time of contact with our fingers “t” as excessive as attainable.
If we try this we can cut back the power F to such a restrict that the egg though fairly brittle, wont break.
To extend the time of contact we have to catch the egg in sweeping motion. We have to transfer our fingers downwards in order that the relative velocity between the hand and the egg turns into much less. This can successfully improve the time “t” and therefore the Power F shall be decreased.
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