How many laws of Newton and who

The three laws of motion were first compiled by Isaac Newton in his Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), first published in 1687. Newton used them to explain and investigate the motion of many physical objects and systems

three laws

Explanation:

there are three laws of motion created by isaac newton. the first one is an object at rest stays at rest and an object in motion stays in motion until acted upon by an external force. the second one is f=ma and the third is for every action there is an equal but opposite reaction.hope this helps

0.11 m/s and 0.28 m/s should be correct