Answer:
-3.4 m
Explanation:
The displacement is the difference between the final position and the initial position:
4.4 m - 7.8 m = -3.4 m
Answer:
l = 0.548 m
Explanation:
For this exercise we compensate by finding the speed of the car
p = m v
v = p / m
v = 0.58 / 0.2
v = 2.9 m / s
this is how fast you get to the ramp, let's use conservation of energy
starting point. Lowest point
Em₀ = K = ½ m v²
final point. Point where it stops on the ramp
= U = m g h
mechanical energy is conserved
Em₀ = Em_{f}
½ m v² = m g h
h =
let's calculate
h =
h = 0.0858 m
to find the distance that e travels on the ramp let's use trigonometry, we look for the angle
tan θ = y / x
tan θ = 12/75 = 0.16
θ = tan⁻¹ 0.16
θ = 9º
therefore
sin 9 = h / l
l = h / sin 9
l = 0.0858 / sin 9
l = 0.548 m
I don't know Ioput, <span>but :
</span>
gravity is:
simplified to near surface force:
so :
M mass of planet
R radius of planet
G gravitational constant
"<span>Same </span>fluid<span> can behave as compressible and </span>incompressible<span> depending upon flow conditions. ... The most common </span>example<span> of compressible flow concerns is the flow of gases (at low velocities), while the flow of </span>liquids<span> may frequently be treated as </span>incompressible<span>(under low pressure)." -Google</span>