Derive ne wton's
first first law of motion from seconfld law of motion
How of
motion from selland
law
of
motion
.
Answers
Answer:
The conclusion is that a change in velocity can only occur if a force is present. But this is just what Newton's first law states. In other words, it appears that the first law can be derived from the second, and if it is nothing more than a consequence of the second, then the first law is redundant.
Explanation:
Newton's first law states that a body stays at rest if it is at rest and moves with a constant velocity unit if a net force is applied on it. Newton's second law states that the net force applied on the body is equal to the rate of change in its momentum.
F = ma
or F = m(v-u) / t
or Ft = mv - mu
That is, when F = 0, v = u for whatever time, t is taken. This means that the object will continue moving with uniform velocity, u throughout the time, t. If u is zero than v will also be zero, i.e., object will remain at rest.