Acceleration..?

Question

Acceleration is defined as the change in:


A. time it takes to move from one place to another place
B. distance divided by the time interval
C. velocity divided by the time interval
D. time it takes to move from one speed to another speed

Answer 1

Acceleration is actually rate of change of velocity.

Only option C fits the answer.

Answer 2

Acceleration is ∆V divided by ∆T. "from one speed to another" is a change is speed, or ∆V. The time it takes is ∆T, so D is the answer. To be accurate, that defines average acceleration in the time interval ∆T.

Answer 3

D. time it takes to move from one speed to another speed.

Think of a line graph as a movement from point a to b at a constant rate of velocity.

Think of a curved graph as the same as line graph but the velocity changes as you go from point a to b.

these are functions related to derivatives from the first series of calculus.

Acceleration can be flat or it can be steep and aggressive....
this is known as the jerk factor....or in automotive terms, torque.

so the more aggressive the acceleration, the sooner you will get to the desired velocity....so D fits the bill.

Answer 4

In physics or physical science, acceleration (symbol: a) is defined as the rate of change (or derivative with respect to time) of velocity. It is thus a vector quantity with dimension length/time². In SI units, acceleration is measured in metres/second² (m·s-²) using an accelerometer.

Answer 5

jesus...
of course it is D..
it is the rate of change in velocity


a = dv/dt

so if you speed up from 100km/h to 120 you have an increase of 20KM/h

if it took you 2 sec to do this then the accelaration is

20km/h / 2sec =

13.89m/sec^2

Answer 6

the answer is only c,

A-time
B-velocity
C-acceleration
D-time