3 years ago

1. If a rock is dropped from a 600 meter cliff, how long will it take to hit the ground? Dl

Physics

1 answer:

Anuta_ua [19.1K]3 years ago

3 0

Answer:

11.1s

Explanation:

Given parameters:

Height of cliff = 600m

Unknown:

How long it takes to hit the ground = ?

Solution:

To solve this problem, we use one of the kinematics equation;

H = ut + $\frac{1}{2}$ gt²

H is the height

u is the initial velocity = 0m/s

t is the time taken

g is the acceleration due to gravity

600 = $\frac{1}{2}$ x 9.8 x t²

600 = 4.9t²

t² = 122.5

t = 11.1s

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