Answer:
0.45 s
Explanation:
Step 1: Given and required data
- Displacement of the book (s): 1 m
- Initial velocity of the book (u): 0 m/s (rest)
- Acceleration due to the gravitational force of Earth (a): 9.8 m/s²
Step 2: Calculate the time that it will take for the book to hit the floor (t)
The book undergoes a Uniformly Accelerated Motion. We can calculate the time required to reach the floor using the following suvat equation.
s = u × t + 1/2 × a × t²
s = 0 m/s × t + 1/2 × a × t²
s = 1/2 × a × t²
t = √(2s/a)
t = √(2 × 1 m/9.8 m/s²)
t = 0.45 s
