freaw9747 freaw9747
  • 22-09-2018
  • Physics
contestada

What is the marble's range if it is fired horizontally from 1.6 m above the ground?

Respuesta :

saadhussain514
saadhussain514 saadhussain514
  • 05-10-2018

Answer:

The answer is 6.40 meters.

Explanation:

The speed v = √(2gh)

v = √( 2×9.8×6.4) = 11.2 m/s

After, finding the time it takes to hit the ground from a height of 1.6 meters.

time = √(2H÷g)

time = √(2×1.6÷9.8)

time = 0.5714 seconds.

Horizontal distance is speed × time = 11.2 × 0.5714 = 6.40 meters.

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