motion in a straight line

physics

uniform motion is moving with constant speed

true false

false

it is moving with constant speed in straight line or constant velocityy

acc may be non zero constant when velocity is constant

true false

false

velocity constant then acc=0

acc may be non zero when velocity is zero

true false

true

at max height under gravity

1. speed may be increasing or decreasing

2. speed must decrease

speed must decrease

acc decrease then velocity may inc or decrease

acc increase then velocity may increase or decrease

acc is non zero constant when position, velocity and time relate to each other as

x ~ t²

v ~ t

v ~ rootx