Question

Derive Newton's first law of motion from the second law.

Answer 1

Explanation:

It states that if an object is not moving, than the net force acting upon it is 0; which is the same amount of force on an object moving at a constant velocity. Many people think that just because an object is moving, a force is constantly acting upon it. This is not the case! The second law states that f=ma.

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Answer 2

Explanation:

newton's second law

Net force on a particle

$f = ma$

$if \: net \: force \: f = 0 \\ acceleration \: a \: = 0 \\ \\velocity \: = constant \: or \: zero \\ according \: to \: newtons \: first \: law \: of \: motion \: if \: net \: external \: force \: applied \: on \: a \: body \: is \: zero.then \: if \: body \: is \: at \: rest \: then \: it \: will \: be \: at \: rest . \: if \: it \: is \: moving \: with \: constant \: velocity \: then \: will \: continue \: moving \: with \: constant \: velocity . \\ so \: newtons \: second \: law \: defines \: newtns \: first \: law.$