Kinematics Problem Solver - Example 2

Question: A boy throws a ball vertically with a velocity of 2.0 m/s. What is the time taken for the ball to reach back to his hand?

Answer:
From the question, we know that

• initial velocity = 2.0 m/s. (It was thrown with "a velocity of 2.0 m/s.")
• final velocity = -2.0 m/s. (It fell "back to his hand.")
• acceleration = -10 m/s^2. (Acceleration due to gravity, taking upwards as positive.)
• time = ?

Neatly done.
Now, let's enter these information into the program as follow.

Fabulous.

The program neatly solved for you. The answer is 0.4s.

Check out the example 3 for more!