Physics, asked by ShahSawoodAfr, 1 year ago

If the mass of a particle is zero, its speed must be?

Answers

Answered by Rumi123456789

First of all , the mass is the amount of matter contained in a body. So, it cannot be zero.

Even if, the mass of a particle is zero, it will not affect the speed of an object because speed of an object = Distance covered by the object / Time taken to cover the distance.

SOMETIMES, ON THE BASIS OF KINETIC ENERGY (speed),
K.E. = 1//2 × m × v²
=> K.E. = 1/2 × 0 × v²
=> K.E. = 0
[Hence, speed is zero.]

Rumi123456789: F = m a so if a is the speed then m×a => 0×a = 0 so speed is zero

ajayshotia: a is the acceleration=speed /time

ShahSawoodAfr: Rumi you are also wrong.

Rumi123456789: hmmm acceleration means you have to consider speed and not speed/time because in this case it is not the rate

ajayshotia: only it is practically true that mass can not be zero

ajayshotia: so question is only assumption

Rumi123456789: yupe theoretically mass can be zero, i know that

ajayshotia: what mass can be zero

Rumi123456789: ⭐️⭐️⭐️⭐️ NO MORE COMMENTS⭐️⭐️⭐️⭐️

ShahSawoodAfr: Its equal to the speed of LIGHT. If the mass of a particle is zero..

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