Acceleration
There are a few. The most famous is a = F/m, where F is the net force applied to a mass, m.
Acceleration is also the change in velocity, (Delta-V), divided by the change in time, (Delta-t). So, a =Δv/Δt.
For example, if an object's velocity changes from 10 meters per second to 20 meters per second in five seconds, its acceleration is (20-10)/5 = 2 meters per second per second, or 2 meters per second squared (m/s2).
For circular motion, centripetal acceleration is v2/r, where v is the linear velocity of the rotating object and r is the radius of its circular path.
Equations in a nutshell
Constant Accelerationa = Δv/Δt = (vfinal - vinitial) / (tfinal - tinitial)a = (v2-u2)/2s
a = 2(s - ut)/t2
where
a=acceleration (m/s2)
v=final velocity (m/s)
u=initial velocity (m/s)
t=time (s)
s=distance (m).
OR
a=(v-vo)/t
a=acceleration (m/s2)
v=final velocity (m/s)
vo=initial velocity (m/s)
t=time (s).
Newton's Second Law
F = ma, thus, a = F/m
Centripetal Acceleration
ac = v2/r
Warning: Calculus Speak:
Acceleration is the second derivative of position with respect to time: d2x / dt2, which makes it the first derivative of velocity: dv / dt. Therefore, the acceleration is the slope of the curve on the velocity-versus-time graph.
Thus:
a = dv / dt = d2x / dt2
Acceleration is a quaternion with real and vector parts:
a= (V^2/R - cDel.v)) + (dcv/dR + cDelxv + V^2/R r)
a= (V^2/R - cV/R cos(v)) + (dv/dt + cv/R sin(v) + V^2/R r)
where R=ct and dR=cdt.
cv/Rcos(v) is the Centrifugal Acceleration a part of the real accelerations in the first parenthesis. The second parenthesis contains the vector accelerations.
Acceleration = F/m, where F is the net force applied to a mass, m.
a=f/m,
acceleration in terms of velocity.
a = v - u/t Delta Velocity divided by Time.
A = ΔV ÷ T Acceleration is worked out by (final speed - initial speed)/ time taken for change in speed a = v2-v1/ t2-t1 Strictly you should say velocity ie the speed in a certain direction. Youalso have the formula f=ma which tells you that the force needed to get something moving will be the mass of the object multiplied by the accelertion you want to achieve; so from this formula if you know force and mass you can work out acceleration. The formula for acceleration is: Vf-(Vi)/t ie. change in velocity per unit time. Instantaneous acceleration in its differential form is d2x/dt2 where x is a function of time t.
Acceleration is the time rate of change of velocity.
That is, acceleration =dv/dt (v - velocity ; t - time)
Or simply acceleration = change in velocity / time
Acceleration=Speed1-speed2/Distance traveled
Net acceleration = (change in velocity) divided by (time for the change)
Mass = force ( weight) / acceleration due to gravity
In physics, there is no "deceleration. " Using the formula for acceleration ((final velocity - initial velocity)/total time) backwards, you can solve for negative acceleration.
Based on what information? A commonly used formula is force = mass x acceleration.
There are different formulae for calculating these variables which depend on what information is available.
Weight W=mg Where W= Weight m= mass g= gravitational acceleration
Weight of a body is calculated by using the formula, W= m.g .where m is the mass of the body andg is acceleration due to gravity.
Mass times acceleration due to the moon's gravity. The latter is 1.622 m/s2.
The answer depends on what information is provided. One possible answer isweight = mass * acceleration due to gravity.
Brakes
The answer depends on what information is available. For example, acceleration = force/mass.Acceleration is the rate of change in velocity. It is, therefore, the derivative of velocity with regard to time (a = dv/dt).