True! In order for work to be done, a force must cause movement.
Angle = 5°
Acceleration = a = g x Sin(θ) where g = 9.8m/s² <span>= 9.8*Sin(6) = 0.854 m/s</span>²<span> , <span>
As coasting comes to a stop:
v = a x t = 0
t = v/a = 34/0.854 = 39.8 seconds
The distance traveled is:
d = (vf-vi)t - (1/2)at</span></span>²<span><span> = 34 x 39.8 - (1/2)(0.854)(39.8)</span></span>²<span><span> =
1353.2 -676.4
</span></span>
<span>= 676.8 m</span>
Newton's 2nd law of motion:
Force = (mass) x (acceleration)
= (0.314 kg) x (164 m/s²)
= 51.5 newtons
(about 11.6 pounds) .
Notice that the ball is only accelerating while it's in contact with the racket.
The instant the ball loses contact with the racket, it stops accelerating, and
sails off in a straight line at whatever speed it had when it left the strings.
Being hot or not drinking enough fluids.
Recently, We've been discussing this specific topic in my RS class. So, there are many theories to explain the existence of the world such as the Big Bang, Evolution or the Creation story.
Although these are three different ideas, they can still be related or interconnected with one another in some way. For example, George Lemaintre's Big Bang explanation can be linked with the Creation story in ways such as God being present at the Big Bang or even God being the one to allow the Big Bang occur.
Furthermore, God might have created us as apes or monkeys then we evolved to become humans.
In conclusion, the universe couldn't have come to pass just like that, they're must be Scientific or Theological truths to back this up. The only thing is that people have their unique beliefs, according to their religion, culture and childhood background.
