Physics, asked by rakul143, 7 months ago

what is the reason behind v=u+at

Answers

Answered by kajalagarwal10

Answer:The answer is that v = u + at isn't the only equation of motion.

For this particular problem, you would use the equation v^2 = u^2 + 2as. This should take into account whatever doubts you have.

To tackle such questions in general, a useful rule of thumb is to pick whatever equation has the most number of variables that are fixed. The third equation is s = ut+ (1/2)at^2.

So if you know u, a and t, use the first equation. If you know s, a and u (like for this problem), use the second. If you know s,

Note: Picking which equation to use is just a matter of convenience. None of them are more correct or more wrong than the others. You simply lack complete information about one of the variables.

Explanation:

hope it helps u!

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