Explanation:
a) We need to write down first Newton's 2nd law as applied to the given system. The equations of motion for the x- and y-axes can be written as follows:
From Eqn(2), we see that
so using Eqn(3) on Eqn(1), we get
Solving for the acceleration, we see that
b) Now that we have the acceleration, we can now solve for the velocity of the crate at the bottom of the plane. Using the equation
Since the crate started from rest, 
Thus our equation reduces to
:
Explanation:
this graph show the decrease in velocity with time
at time t=0 velocity is 40 m/sec
at time t=12sec velocity is decreases from 40 to 10 m/s
so the acceleration of the object at time=12 sec is
a=v/t
a=Δv/t
Δv=v1-v2=40-10=30 m/s
a=30/12=2.5 m/s^2
Well water or any liquid actually takes the form of the cup of bowl or whatever you put the liquid in
REMEMBER- Liquid has no shape.
hope this helps!!!!!!!!
Responder:
Explicación:
Usando una de las ecuaciones de movimiento expresadas como;
v = u + en donde;
v es la velocidad final del objeto
u es la velocidad inicial del objeto
a es la aceleración
t es el tiempo que toma
Parámetros dados
v = 150 m / s
u = 0 m / s
a = 9,5 m / s²
Necesario
tiempo tomado
Al sustituir los parámetros dados en la fórmula
150 = 0 + 9.5t
9,5 t = 150
Dividiendo ambos lados por 9.5
9,5 t / 9,5 = 150 / 9,5
t = 15,79 segundos
Por lo tanto, el tiempo que alcanzará una velocidad de 150 m / s es de 15,79 segundos.
The answer is <em>C.) Elevated</em>
