contestada

A cannonball is shot horizontally off a
10.5 m high castle wall at 47.4 m/s. How
far from the base of the wall does the
cannonball land?

Respuesta :

cygnusabc00

Answer:it's 132.2m

Explanation:

Hello !

Because first recall parabolic peak height equation and

given that v=47.4m/s , h=10.5m

  • v²sin²(θ⁰)=2ℎ₀
  • (47.4)²²(θ⁰)=2(9.81)(10.5)
  • θ=17.63

secondly recall parabolic total distance equation

  • d₀=²(2θ⁰)/g
  • d₀=(47.4)²(2(17.63)⁰)/9.81
  • d₀=132.2m

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