Question

why Newton's second law is called real law?​

Answer 1

Explanation:

A factory has two machines A and B. A produces 60% and B 40% of the total

output. 2% product of machine A and 1% of machine B is defective. If one item

is chosen at random from the output and is found defective, find the probability that it was produced by machine A

Answer 2

$Your \: answer \: is \: here :$

Newton's Second law of motion is called real law of motion because all the laws can be derived and are contained in this law.

Proof: We know, F = m. ... If no external force acts on a body, then F = 0, since f = ma, a = 0 because mass of a body cannot be 0.