- Horizontal velocity component: Vx = V * cos(α)
- Vertical velocity component: Vy = V * sin(α)
- Time of flight: t = 2 * Vy / g.
- Range of the projectile: R = 2 * Vx * Vy / g.
- Maximum height: hmax = Vy2 / (2 * g)
How do you find initial horizontal velocity?
Divide the horizontal displacement by time
to find the horizontal velocity. In the example, V
x
= 4 meters per second.
How do you find vertical initial velocity?
The initial vertical velocity is the vertical component of the initial velocity:
v 0 y = v 0 sin θ 0 =
( 30.0 m / s ) sin 45 ° = 21.2 m / s .
How do you find initial velocity?
- Work out which of the displacement (S), final velocity (V), acceleration (A) and time (T) you have to solve for initial velocity (U).
- If you have V, A and T, use U = V – AT.
- If you have S, V and T, use U = 2(S/T) – V.
- If you have S, V and A, use U = SQRT(V
2
– 2AS).
Is V initial or final velocity?
Final velocity (v) of an object
equals initial velocity (u)
of that object plus acceleration (a) of the object times the elapsed time (t) from u to v. Use standard gravity, a = 9.80665 m/s
2
, for equations involving the Earth’s gravitational force as the acceleration rate of an object.
Can initial velocity be zero?
Well
if an object starts from rest then it’s initial velocity would be zero
however if it is already in motion then it does have an initial velocity of greater than zero.
How do you find initial velocity with height?
The maximum
height
of an object, given the
initial
launch angle and
initial velocity
is found with_h=v2isin2θi2g h = v i 2 sin 2 θ i 2 g . The time of flight of an object, given the
initial
launch angle and
initial velocity
is found with: T=2visinθg T = 2 v i sin .
What is initial velocity symbol?
The
symbol v
0
[vee nought]
is called the initial velocity or the velocity a time t = 0. … A better definition would be to say that an initial velocity is the velocity that a moving object has when it first becomes important in a problem.
Is initial speed and initial velocity the same?
Velocity is a vector quantity, so to specify the intial velocity you must provide not only its magnitude (i.e., the speed) but also a direction. So the initial velocity you are concerned with here is
30m/s
at +60° to the horizontal. Drakkith said: Technically 30 m/s is the speed.
Is V U at dimensionally correct?
To check the correctness of physical equation,
v = u + at
, Where ‘u’ is the initial velocity, ‘v’ is the final velocity, ‘a’ is the acceleration and ‘t’ is the time in which the change occurs. From (1) and (2) we have [L.H.S.] = [R.H.S.] Hence by principle of homogeneity the given equation is dimensionally correct.
What is final 9th velocity?
Initial and Final Velocity
Initial velocity describes how fast an object travels when gravity first applies force on the object. On the other hand, the final velocity is
a vector quantity that measures the speed and direction of a moving body after it has reached its maximum acceleration
.
Can you find velocity without time?
A common question asks students to calculate the final velocity of an object without knowing
how long it accelerated
. As long as the acceleration and displacement of the object is known, any student can solve this problem.
What is the initial velocity at rest?
1.At rest means
zero velocity
. In the beginning means initial. So the answer is zero.
How do you find initial velocity and final velocity?
Final velocity (v) of an
object equals initial velocity (u) of that object plus acceleration (a) of the object times the elapsed time (t) from u to v
. Use standard gravity, a = 9.80665 m/s
2
, for equations involving the Earth’s gravitational force as the acceleration rate of an object.
At what time is the velocity equal to zero?
Average speed is the total distance traveled divided by the elapsed time. If you go for a walk, leaving and returning to your home, your average speed is a positive number. Since
Average velocity = Displacement/Elapsed time
, your average velocity is zero.
What is the formula for height?
So, “
H/S = h/s
.” For example, if s=1 meter, h=0.5 meter and S=20 meters, then H=10 meters, the height of the object.