Which formula is used to calculate average velocity?

V Subscript a v g Baseline = StartFraction x Subscript f Baseline minus x Subscript I Baseline over t Subscript f Baseline minus t Subscript i Baseline EndFraction
V Subscript a v g Baseline = StartFraction t Subscript f Baseline minus t sub I over x sub f minus x sub I
v Subscript a v g Baseline = StartFraction d over t EndFraction
v Subscript a v g Baseline = StartFraction t over d EndFraction

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters