Answer:
The magnitude of force is 1593.4N
Explanation:
The sum of the horizontal components of the friction and the normal force will be equal to the centripetal force on the car. This can be represented as
fcostheta + Nsintheta = mv^2/r
Where F = force of friction
Theta = angle of banking
N = normal force
m = mass of car
v = velocity of car
r = radius of curve
The car has no motion in the vertical direction so the sum of forces = 0
The vertical component of the normal force acts upwards whereas the weight of the car and the vertical component friction acts downwards.
Taking the upward direction to be positive,rewrite the equation above to get:
Ncos thetha = mg - fsintheta =0
Ncistheta = mg + fain theta
N = mg/cos theta + sintheta/ costheta
fcostheta +[mg/costheta + ftan theta] sin theta = mv^2/r
Substituting gives:
f = (1/(costheta + tanthetasintheta) + mgtantheta = mv^2/r - mgtantheta)
Substituting given values into the above equation
f = 1/(cos25 + tan 25 )(sin25)[ 600×30/120 - (600×9.81)tan
f = 1593.4N25
It is B, Microcephaly. Hope I helped! :))
<span>Given:
3,500 kilometers
Find:</span>
Years for two continents to collide = ?
<span>Solution:
We know that </span>typical motions of one plate relative to another
are 1 centimeter per year.
So first, we convert 3,500 km to cm.<span>
</span><span>
</span>
The solution would be like this for this specific problem:
1 km = 100,000 cm
3,500 km x 100,000 = 350,000,000 cm
Since we know that 1 cm = 1 year, then that means
350,000,000 cm is equivalent to 350,000,000 years.
Therefore, it would take 350 million years for two continents
that are 3500 kilometers apart to collide.
<span>
To add, </span>a phenomenon of the plate tectonics of Earth that occurs at
convergent boundaries is called the continental collision.
Answer:
Explanation:
Given that
From the diagram
By differentiating with time t
When x= 10 m
θ = 64.53°
Now by putting the value in equation
Therefore rate of change in the angle is 0.038\ rad/s
