Calculating Velocity of a Ball
Velocity Calculation
A ball is thrown straight down with a velocity of 19.6m/s. We need to determine what will be its velocity 2.0s after being released.
Answer
Answer: 39.2 m/s
Explanation: Initial velocity of the ball, u = 19.6 m/s, final velocity of ball, time, t = 2.0 s.
The ball would accelerate due to gravity, a = g = 9.8 m/s².
Using the first equation of motion:
v = u + a t
Substitute the given values:
v = 19.6 m/s + 9.8 m/s² × 2.0 s = 39.2 m/s
Thus, the velocity of the ball after 2.0 s of release would be 39.2 m/s.
What is the initial velocity of the ball?
The initial velocity of the ball is 19.6 m/s.