Question

1)Newton's laws of motion are concerned with relationships among

a) force, mass and motion

b) Displacement, mass and acceleration

c) Velocity, fore and acceleration

d) mass, acceleration and velocity


I feel that thay deal with force, mass and motion which is A, am I correct



2)The motion of an objct thrown vertically upward is affected by the acceleration of gravity

A) During its upward motion

B) During its downward motion

C) During both upward and downward motion

D) A variable manner


I feel it is C because gravity is always there, am I correct?

Answer 1

1. first law is mass and velocity
second law is force and acceleration
third law is force and force.
so
mass, motion, force
agree

Answer 2

Yes, both up and down net force = m g down