kryptral kryptral

23-10-2020
Physics

contestada

Suppose a book is dropped from a height of 1.0 m. What is the velocity of the book just before it hits the ground.

Respuesta :

abidemiokin abidemiokin

31-10-2020

Answer:

Explanation:

Given

initial velocity u = 0m/s

Distance of fall S = 1.0m

Final velocity = ?

a is the acceleration due to gravity = 9.81m/s²

Using the equation of motion

v² = u² + 2aS

v² = 0+2(9.81)(1)

v² = 19.62

v = √19.62

v = 4.43m/s

Hence the velocity of the book just before it hits the ground is 4.43m/s

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