Since the acorn is thrown horizontally, the initial vertical velocity is 0 m/s. Let’s use the following equation to determine the time to fall 10 meters.
<span>d = vi * t + ½ * a * t^2, vi = 0, a = 9.8 </span>
<span>10 = 4.9 * t^2 </span>
<span>t = √(10/4.9) </span>
<span>This is approximately 1.43 seconds. Let’s use the following equation to determine the horizontal distance it moves. </span>
<span>d = v * t = 1.1 * √(10/4.9) </span>
<span>This is approximately 1.57 meters. To determine the horizontal distance between the acorn and squirrel, subtract this distance from 5 meters. </span>
<span>d = 5 – 1.1 * √(10/4.9) </span>
<span>This is approximately 3.83 meters. To catch the acorn, the squirrel must move this distance in the same time as the acorn falls 10 meters. </span>
<span>Average velocity = ([5 – 1.1 * √(10/4.9] ÷ √(10/4.9) = 2.4 m/s </span>
<span>I hope this helps you to understand how to solve this type of problem.</span>
<h2>
The gravitational acceleration on planet X is 32.7 m/s²</h2>
Explanation:
The acceleration due to gravity is given by
where G is gravitational constant, M is mass and R is radius.
For earth we have
g = 9.81 m/s²
That is
For planet X we have
Substituting
The gravitational acceleration on planet X is 32.7 m/s²
Answer:
It's Ptolemy
Explanation:
He thought the Earth was the universe's center and everything revolved around us.
It's the angle made by the incident ray when it's perpendicular to the surface. (Perpendicular lines are the lines that form a graph or like a 90-degree angle)
