Answered

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How fast is a ball going when it hits the ground after being dropped from a
height of 9 m? The acceleration of gravity is 9.8 m/s2
O A. 17.6 m/s
O B. 14.9 m/s
O C. 11.5 m/s
O D. 13.3 m/s


Help !

Sagot :

alejanndraax

Answer:

Option D.

Explanation:

Data:

  • Height (h) = 9 m
  • Gravity (g) = 9.8 m/s²
  • Velocity Final (Vf) = ?

Use formula:

  • Vf² = 2 * g * h

Replace:

  • Vf² = 2 * 9.8 m/s² * 9 m

Multiply gravity with height:

  • Vf² = 2 * 88.2

Multiply:

  • Vf² = 176.4

Solve the square root:

  • Vf = 13.3

How fast is the ball going?

The speed is going at a speed of 13.3 meters per second.

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