PHYSICS AND HEALTHY REASON #4
19/03/2021 Views : 542
Anak Agung Ngurah Gunawan
Is it difficult for your younger siblings to learn physics?
Now that is because the younger siblings are learning the wrong way,
The younger siblings always ship out complicated physics formulas.
It is difficult to memorize physics formulas and much more. Even though you memorize all the physics formulas, it doesn't mean you can work on physics problems, now that's what makes it difficult for you to learn physics, right?
Now I will tell you an easy way to learn physics, namely by common sense (logic).
Here's how: younger siblings remind the number of Pythagoras:
6 8 10
Logically :
Everything is enlarged except for the length, so that it can be formulated as follows:
L '= k L0 (decrease)
M '= k m0 (enlarge)
T '= k T0 (enlarge)
Ek = (k-1) E0 (enlarged)
Where k is a comparison of the yet-unfinished Pythagorean numbers with the largest Pythagorean number.
So now we try to take modern physics questions from SMPTN questions:
1. A rocket before launching 200 m long. The rocket was traveling at a speed of 0.6C. People who live on earth look at rockets in length ..... (m)
A. 150 B. 160 C. 170 D. 180 E. 200
Answer: B.160
Logic Way:
speed 0.6 c, means 6/10, so the number that hasn't come out is 8 and the biggest number is 10.
Remember pitagoras: 6 8 10, the numbers that have not been drawn are connected to the largest number, so that you get 8/10 or 10/8. Because the moving length decreases
L ' = (8/10) X 200 = 160.
the real way:
L ' = L X roots (1 - v ^ 2 / c ^ 2)) = 200 X roots 1 - (0.6c) ^ 2 / c ^ 2) = 200 X roots (1-0.36) = 200 X roots 0.64 = 200 X 0.8 = 160.