179. 2023年2月14日 13:40:32 : xaBN2tBqEc : b1FHTnB2UnI4d2M=[1]
Inertial Force is not Fictitious (again) (クリ)
The same five bodies (mass m) are lined up sideways on a horizontal plane. Five bodies are tied with four strings. Assume that horizontal plane is zero friction, and mass of strings is zero. On right most body, force of 5ma is acting to the right and five bodies start a uniform linear accelerating motion toward the right. Tension acting on four strings are, from right to left, 4ma, 3ma, 2ma, and 1ma.
Tension in the string above will be the same to an observer of any frame of motion. Inertial force (accelerated motion) is not fictitious.
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