You need velocity at two points in time, and the acceleration must be constant.
If the initial velocity is u ms-1 and the final velocity is v ms-1, and the time interval is t then
t = (v - u)/a s.
To find the acceleration if the time is not given, you will need to know the velocity and the distance. Then, use this equation: d = vt + (1/2)at2 to solve the problem by plugging in your numbers for the distance and the velocity.
There are different formulae for calculating these variables which depend on what information is available.
Distance = time * average speed (velocity) Average speed = Distance/time
velocity=distance/time -or- v=d/t
Change in velocity = Velocity at the end of the period minus velocity at the start of the period.
Use the formula Acceleration = (final velosity - initial velocity)/ time.
Acceleration is the rate of change in velocity.
formula for speed is distance traveled over time taken to cover distance acceleration is given by change in velocity per unit time
Deceleration is the rate of decrease of velocity with respect to time. It is the negative of acceleration. The formula for deceleration is the same as that of acceleration, only that the acceleration is represented as negative. The formula is: - (deceleration) = (final velocity) - (initial velocity) time Therefore, (deceleration) = (initial velocity) - (final velocity) time
if acceleration a, initial velocity vi and final velocity vf is given , then time could be found by applying formula t=vf-vi/aand if distance s and velocity v is given then t=s/v
Final velocity = (Initial velocity) + (time)(acceleration)
Time equals velocity divided by acceleration. t=v/a
acceleration = change in velocity / time
Acceleration is the rate of change of velocity per time, so to get velocity, multiply (acceleration)*(time). This will give the change in velocity over the specific amount of time. You must add the initial velocity to get the final velocity, so we have the formula: Vf = Vo + a*t, where Vo is the initial velocity. This means that you can rearrange to get Vo = Vf - a*t
Such formulae are usually given for acceleration; NOT for speed. The relevant formula is:a = dv/dt That means, acceleration is the rate of change of velocity, with respect to time. For constant acceleration (or for short time intervals), you can also write this as: a = delta v / delta t (change in velocity divided by the time interval)
Acceleration is the the fluctuation in velocity per unit time.to calculate the acceleration we need the formula : Acceleration = Velocity fluctuations / time taken or Acceleration = Final velocity - Initial velocity / time taken or a = v-u/t
Such formulae are usually given for acceleration; NOT for speed. The relevant formula is:a = dv/dt That means, acceleration is the rate of change of velocity, with respect to time. For constant acceleration (or for short time intervals), you can also write this as: a = delta v / delta t (change in velocity divided by the time interval)