Question

Can anybody tell me what does retardation means in speed time graph?

Answer 1

it means that the distance is decreasing

Answer 2

ok thanks

Answer 3

will it be in minus because its deacresing

Answer 4

ok... well!! acceleration is the time rate of change of velocity. Since change can only
mean either the increase or decrease of something, we also speak of two
kinds of acceleration in physics, namely positive acceleration and negative
acceleration. Positive acceleration increases the speed of a moving object
so the object moves faster and faster. Negative acceleration or deceleration
has the opposite effect and it reduces the speed of a moving object. Since
an object with decreasing speed moves slower and slower, negative
acceleration or deceleration is also sometimes referred to as retardation,
in analogy to some people with certain biological problems who react and
think rather slower than most others. So you see, sometimes you can guess
the meaning of some rather technical terms used in physics by thinking about
their meaning in everyday use...!!

Answer 5

im getting 120 so shall i write -120?