Answer:
<h2>
500m</h2>
Explanation:
Using the equation of motion S = ut + 1/2 gt²
S = the vertical displacement (in m)
u = initial velocity of the object (in m/s)
g = acceleration due to gravity (in m/s²)
t = time taken (in secs)
Given u = 0m/s, g = 10m/s² and t = 10s, substituting this value into the equation to get the vertical displacement w have;
S = 0+1/2 (10)(10)²
S = 1000/2
S = 500m
The vertical displacement after 10seconds is 500m
For every action, there is an equal and opposite reaction. For example, take a cup on a table. The weight of the cup is the action, and the reason the cup does not sink through the table is because the table exerts an equal reaction force which is opposite to the action of the cup.
Hope this helps!
Answer:
The ability to react to a certain stimulus with a speedy and effective manner
Explanation:
Answer:
<em>D. The acceleration after it leaves the hand is 10 m/s/s downwards
</em>
Explanation:
<u>Vertical Throw
</u>
When an object is thrown upwards, it describes a special type of motion ruled only by gravity.
When the ball is launched, it has its maximum speed upwards. The acceleration of gravity is always the same because it's a constant value near our planet's surface. The object starts to lose speed since the acceleration of gravity is pointed downwards and makes the object stop in the mid-air at its maximum height, where the speed is zero. Then, the object starts to fall and regain speed, this time downwards until it reaches back the launching point at the very same speed it was launched, but in the opposite direction.
The time it takes to reach its maximum height is the same it takes to return to the catching point, 2 seconds later.
With all these concepts in mind, we state that:
<em>D. The acceleration after it leaves the hand is 10 m/s/s downwards </em>
The other options are not correct because:
A. The acceleration is never upwards
B. The acceleration is never 0
C. Both times are equal
<span>electrons change momentum, some of them slough off photons. And some of those photons have energy in the visible light range of the electro-magnetic spectrum. </span>
