GENERAL KNOWLEDGE

GK

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Against the sheet, the egg did not break because the sheet applied a small force over a longer time.
A
true
B
false
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -The egg should not break, because the collision between the egg and the bed sheet lasts over an extended period of time since the bed sheet has some give in it. By increasing the time of the collision, the force of the impact is minimised.

Detailed explanation-2: -Throw a raw egg at the sheet as hard as you can. It won’t break because the sheet slows the movement of the egg as it comes to a stop. The law of motion says that the faster you change the speed of an object, the greater the force applied to the object will be.

Detailed explanation-3: -The velocity must be estimated, which can be done with more physics. v = (2*g*h)0.5. Now, using known values of g = 9.81 m/s2 and h = 4 ft = 1.22 m, v = 4.89 m/s. Putting all of it together into the equation F=m*(dv/t), the force to break the egg is 24.5 N, or around 5.5 lbs.

Detailed explanation-4: -The arch structure at either end of the egg is stronger than its sides. Pressure is distributed down (or up) the arches so that less pressure acts on any one point. Orienting the arch downwards will increase the egg’s survival.

Detailed explanation-5: -The egg misses the bed sheet and collides with the wall. In these unexpected cases, the collision between wall and egg lasts for a short period of time, thus maximizing the effect of the force on the egg.

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