- #36
Dr.D
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DrStupid said:Most probably not. The first post refers to dynamics and not to kinematics.
Maybe, but maybe not . Here is a repeat of the first post:
So, we know that force equals mass times acceleration. A force is needed to cause an acceleration. I am wondering though, is mass required for accelerations to happen? Why or why not?
It certainly does not reference the word "dynamics," per se, but it does speak of acceleration. Acceleration is specifically a kinematic concept that merely happens to have relevance in dynamics. The OP says, "A force is needed to cause an acceleration," which is not true at all unless there is mass involved. Accelerations of massless points happen in many circumstances with no force involved.