Question

quiz on chapter - 2 laws of motion

Answer 1

First law: When viewed in an inertial reference frame, an object either remains at rest or moves at a constant velocity, unless acted upon by an external force.[2][3]Second law: The vector sum of the forces F on an object is equal to the mass m of that object multiplied by the acceleration a of the object; thus, F = ma. Force and acceleration are both vectors (as denoted by the bold type).

Answer 2

Triple point of a substance is temperature and pressure at which three phases of that substance co exist in equilibrium