2 cars are moving in same direction in parallel lanes along a highway. At some instant velocity of car A exceeds car A exceeds the velocity of car B. Does that mean that the acceleration of A is greater than car B? Explain.
~Well I would say yes but is it b/c of the equation relation relating v to a ?
(v/t=a) and thus if v goes up then a goes up as well?
Just checking my thoughts
Thanks =)
No. Wouldn't all the scene facts be true if Car A were Just going faster than B?
But they say "at some instant the velocity exceeds velocity of car B"...doesn't that mean that they were at a certain velocity before and after that instant something changed??
Wouldn't the car A have to accelerate to have the velocity increase??
Are you refering to speed?
Is this alright???
please help me out on this..=(
(above post explanation)
at some instant Car A is going faster than Car b.
That says nothing about the other times. It does not mean that Car A accelerated just before, or deaccelerated after. The question asks its meaning: Its meaning is not that car A accelerated.
Oh..Okay..Thanks Bob =)
Yes, your thoughts are correct! In the equation that relates velocity (v), time (t), and acceleration (a), v/t = a, it states that acceleration is the change in velocity per unit of time.
If the velocity of car A exceeds the velocity of car B at some instant, it means that car A is experiencing a faster rate of change in velocity compared to car B. In other words, car A is accelerating at a greater rate than car B.
Therefore, when the velocity of car A exceeds the velocity of car B, it implies that the acceleration of car A is indeed greater than the acceleration of car B.