Question

"variable" velocity means that the velocity is changing right? it's not constant?

Answer 1

correct :)

Answer 2

yay thanks!! so variable velocity cant have zero acceleration right??

Answer 3

correct - you need acceleration (or deceleration) in order to change velocity

Answer 4

another way to look at it is that you need some force applied to an object in order to change its velocity, and:

F = ma

Answer 5

yes! thanks :) now i have a chance to pass that physics test lol

Answer 6

therefore you need acceleration

Answer 7

lol i dont know those concepts yet :p well i do..but im vague with it

Answer 8

np - you'll soon learn these too :)

Answer 9

all in good time :) our lesson in physics is already laws of motion :D so expect some of those questions soon lol