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Name:
9. A ball is thrown vertically in the air from rest and soars for 4.2 seconds.
If the acceleration due to gravity is 9.8 m/s², what is the final velocity
of the ball when it is caught?

Sagot :

asuwafohjames

The final velocity of the ball when it is caught is 20.58 m/s

What is velocity?

Velocity is the rate of change of displacement.

To calculate the final velocity of the ball when it is caught, we use the formula below.

Formula:

  • v = u+gt............ Equation 1

Where:

  • v = Final velocity
  • u = Initial velocity
  • g = Acceleration due to gravity
  • t = Time

From the question,

Given:

  • u = 0 m/s
  • g = 9.8 m/s²
  • t = 4.2/2 = 2.1s

SUbstitute these values into equation 1

  • v = 0+9.8×2.1
  • v = 20.58 m/s

Hence, the  final velocity of the ball when it is caught is 20.58 m/s

Learn more about velocity here: https://brainly.com/question/4931057

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