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A rock is thrown horizontally at 10.0m/s off of a 150m sheer cliff. What is the range?

User Timespace
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2 Answers

3 votes

Answer:20

Step-by-step explanation:

User Freaktor
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4.5k points
2 votes

Answer:

55.3 m

Step-by-step explanation:

First, find how long it takes to land.

Given (in the y direction):

Δy = 150 m

v₀ = 0 m/s

a = 9.8 m/s²

Find: t

Δy = v₀ t + ½ at²

(150 m) = (0 m/s) t + ½ (9.8 m/s²) t²

t = 5.53 s

Given (in the x direction):

v₀ = 10.0 m/s

a = 0 m/s²

t = 5.53 s

Find: Δx

Δx = v₀ t + ½ at²

Δx = (10.0 m/s) (5.53 s) + ½ (0 m/s²) (5.53 s)²

Δx = 55.3 m

User Aamiri
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4.7k points