Pluto is actually considered to be a dwarf planet and was not considered a planet due to the fact that it was too small in size and it's location is space. Pluto and others similar to it are called dwarf planets. Pluto is also referred to as a plutoid, which is any dwarf planet farther out than the planet Neptune.
The height of the building using second equation of motion is 35.721 m
What is the second equation of motion?
In kinematics, equations of motion are referred to as the fundamental principles of an object's motion, including velocity, location, and acceleration that occur at variable time intervals. These three motion equations control motion in all three dimensions of an item.
Second equation of motion: s = ut + a(t^2)/2
where,
s = displacement
u = initial velocity
v = final velocity
a = acceleration
t = time of motion
Given, a = 9.8 m/s/s
t = 2.7 s
Using this equation we find the height of the building,
s = ut + a(t^2)/2
= 0 + 9.8 x 2.7 x 2.7/2
= 71.442/2
= 35.721 m
Hence, the height of the building is 35.721 m
To learn more about equations of motions from the given link
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Answer: wants
Explanation:
People want it but don’t need it
Answer:
a = 50.26 rad/s^2
Explanation:
We know that:
θ = 
where θ is the angle, a the angular aceleration and t the time.
First, we need to find how many rad are equivalent to 4 rev, as:
θ = 4 rev * 2π = 25.13 rad
Finally, replacing θ by 25.13 rad and t by 1 second, we get:
25.13 rad = 
Solving for a:
a = 50.26 rad/s^2
Answer:
Explanation:
Initial kinetic energy of particle
= 1/2 m V²
= .5 x .208 x 1.26²
= .165 J
Work done by force = force x displacement
= .766 x .195
= .149 J
This energy will be added up .
Total final kinetic energy
= initial kinetic energy + work done on the particle
= .165 + .149 J
= .314 J .
