You go through the sections of the book that have been covered most recently
in class, and you look for the part where the following formulas both appear
close together, within a page or two:
F = M a
Vf = Vi + aT
Then you read over that section again. We can assure you that you didn't get it
the first time through.
Note:
Even if you don't want to go through that much of a hassle, those two formulas
listed above are enough to answer the question.
Kinematics. Final velocity squared = initial velocity squared + 2(gravitational acceleration)(displacement)
If the velocity is uniform, then the final velocity and the initial velocity are the same. Perhaps you meant to say uniform acceleration. In any event, the question needs to be stated more precisely.
To find acceleration, you take Vi [Initial Velocity] and you subtract if from Vf [Final Velocity.] (Vi - Vf) If they Vi and Vf are already given, you take the two givens and you subtract them from each other. Vi minus Vf. Do not do Vf minus Vi or it will be wrong. After you do that, you divide your answer from T [Time] (Vi - Vf) a= _____ t Once you get your answer, that will be your acceleration.
Without knowing initial velocity ? Hmmm. That could make it difficult.Our best advice would be to use what you do know to find what you're looking for.
The amount of time it would take an object to travel a distance with constant acceleration depends on its initial velocity, according to the equation: d = vit + 0.5at2 Where d is displacement, vi is initial velocity, t is time, and a is acceleration. Note: if the object starts from rest, its initial velocity, logically, is zero.
the formula for finding acceleration is final velocity, minus initial velocity, all over time. So if you have the acceleration and initial speed, which is equal to the initial velocity, you must also have time in order to find the final velocity. Once you have the time, you multiply it by the acceleration. That product gives you the difference of the final velocity and initial velocity, so then you just add the initial velocity to the product to find the final velocity.
The final velocity is (the initial velocity) plus (the acceleration multiplied by the time).
Kinematics. Final velocity squared = initial velocity squared + 2(gravitational acceleration)(displacement)
You subtract the initial velocity from the final velocity and divide by the time interval.
Yes.
v = 2s/t - u where u=initial velocity, v=final velocity, s = distance and t = time
Without distance, you have to know time, initial velocity, and acceleration, in order to find final velocity.
To find acceleration you subtract initial velocity from final velocity and divide it by time.
If the velocity is uniform, then the final velocity and the initial velocity are the same. Perhaps you meant to say uniform acceleration. In any event, the question needs to be stated more precisely.
You can't.You only know what half the sum of (initial + final) is, (it's the average), but you don't know what the initial and final are.
Average acceleration = final velocity - initial velocity/ final time - initial timeOr for short:Aave=Vf-Vi/Tf-TiHope that helps :)
Use the formula Acceleration = (final velosity - initial velocity)/ time.