Variable motion moves in all different directions, while circular motion can only move in one direction. They're alike because both circular and variable are both constant. Another way they're alike is that variable motion is used with transportation movements like cars, trucks, and buses. Circular motion can also be used with transportation like with wheels on cars, trucks, and buses. The last way the types motions are different is that the circular motion can't be stopped once it's going down hill, but variable can be stopped.<span> </span>
Answer:
Absolute refractive index is 1
Relative refractive index is lesser than 1.
Explanation:
Answer:
The time it will take the car to travel the next 15 m is 1 s.
Explanation:
Given;
initial velocity of the car, u = 0
time of motion, t = 2.4 s
initial distance traveled, d = 15 m
determine the constant acceleration of the car;
d = ut + ¹/₂at²
15 = 0 + (0.5 x 2.4²)a
15 = 2.88a
a = 15 / 2.88
a = 5.21 m/s²
The velocity of the car at the end of the first 15 m
v - u + at
v = 0 + 5.21 x 2.4
v = 12.5 m/s
The time to cover the next 15 m;
d₂ = vt + ¹/₂at²
15 = 12.5t + (0.5 x 5.21)t²
15 = 12.5t + 2.61t²
0 = 2.61t² + 12.5t - 15
Use the formula method to solve the above quadratic equation.
a = 2.61
b = 12.5
c = -15

Therefore, the time it will take the car to travel the next 15 m is 1 s.
Answer:
Mechanical energy
Explanation:
If an object does not have any momentum, then it doesn't have mechicanl energy.
Answer:
1.
2.
Explanation:
1. La altura máxima se puede calcular usando la siguiente ecuación:
(1)
Where:
: es la velocidad final = 0 (en la altura máxima)
: es la velocidad inicial horizontal en "y"
g: es la gravedad = 9.81 m/s²
h: es la altura máxima =?
La velocidad incial en "y" se puede calcular de la siguiente manera:
Resolviendo la ecuación (1) para "h" tenemos:
2. Para calcular el alcance horizontal podemos usar la ecuación:

Primero debemos encontrar el tiempo cuando la altura es máxima (
= 0).
Ahora, como el tiempo de subida es el mismo que el tiempo de bajada, el tiempo máximo es:
Finalmente, el alcance horizontal es:
Espero que te sea de utilidad!