Table of Contents
What is an example of initial velocity?
For example, if a projectile is moving upwards with a velocity of 39.2 m/s at 0 seconds, then its velocity will be 29.4 m/s after 1 second, 19.6 m/s after 2 seconds, 9.8 m/s after 3 seconds, and 0 m/s after 4 seconds.
How do you find initial speed?
Initial Velocity Formula
- Initial Velocity Formula Questions:
- Answer: The initial velocity can be found using the formula:
- vi = vf – at.
- Answer: The initial velocity can be found using the formula:
- vi = vf – at.
Is velocity The initial speed?
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.
What is initial velocity and final velocity with example?
In the equation V = d/t, V is the velocity, d is the distance and t is the time. For example, if your initial velocity was 3 m/s and your object acceleration is 4 m/s, your final velocity is 7 m/s (3 + 4 = 7).
How do you find speed with initial velocity?
If you have values for the final velocity, acceleration, and time involved, you can use the following equation:
- Initial velocity: Vi = Vf – (a * t)
- Understand what each symbol stands for. Vi stands for “initial velocity”
- Note that this equation is the standard equation used when finding initial velocity.
How do you find initial speed in physics?
If you are given the final velocity, time, and distance, you can use the following equation:
- Initial velocity: Vi = 2(d/t) – Vf
- Understand what each symbol stands for. Vi stands for “initial velocity” Vf stands for “final velocity” t stands for “time” d stands for “distance”
What is initial velocity class 9th?
Initial Velocity is the velocity at time interval t = 0 and it is represented by u. It is the velocity at which the motion starts.
How do I find my initial position?
Position Formulas – Change in Position Formula & Examples
- Δr = r2 – r1. If the change in position is dependent upon time, then the position can be represented as. r (t) = ½ at2 + ut + r1.
- r = initial position. Example:
- Ans: Position of the boy = r (t) = ½ at2 + ut + r1.
- = 45m. Question:
What is the formula to calculate initial speed?
In order to solve any physics problem we must know which equation to use. If you have values for the final velocity, acceleration, and time involved, you can use the following equation: Initial velocity: Vi = Vf – (a * t) Vi stands for “initial velocity” Vf stands for “final velocity”.
What are some examples of instantaneous speed in physics?
Answer Wiki. 5 Answers. , Physics minor, lover of science, curious. Crashes, photons, starting from rest and jumping to a certain speed are all examples of things or events where an instantaneous change in velocity occurs. Photons are emitted at the speed of light respective of the medium and they change velocity when entering another medium.
How do you find the initial velocity of a car?
To find initial velocity, start by multiplying the acceleration by the time. Then, divide that number by 2 and write down the quotient you get. Next, divide the distance by the time and write down that quotient as well. Finally, subtract your first quotient from your second quotient to find the initial velocity.
When does motion start is the initial velocity?
Thus velocity at which motion start is the initial velocity. Obviously, this velocity at time interval t = 0. It is represented by letter u. Three initial velocity formulas based on equations of motion are given below,