Which is a characteristic of centripetal acceleration?
2 answers:
Answer:
It is directed inward, toward the center of a circle.
Explanation:
Centripetal acceleration is the acceleration resulting from a movement along a circular path.
This acceleration is always directed towards the center of the circle and is defined as follows:
where is the tangential velocity of the object in the circular path, and
is the radius of the circle.
So the answer is:<u> It is directed inward, toward the center of a circle.</u>
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Given Information:
Mass = m = 20000 kg
Height of ramp = h = 0.840 m
Length of ramp = L = 20 m
Required Information:
Uphill Force = F = ?
Answer:
F = 8232 N
Explanation:
The force can be found using the equation
F = mgsinθ
Where m is the mass of block, g is the acceleration due to gravity
Since the ramp can be modeled as an inclined plane so it can formed into a triangle, recall that in right angle triangle sinθ is equal to opposite over hypotenuse. The opposite is the height and hypotenuse is the ramp surface.
sinθ = h/L = 0.840/20 = 0.042
F = 20000*9.8*0.042
F = 8232 N
Therefore, an uphill force of 8232 N would be needed.
First we can say that since there is no external force on this system so momentum is always conserved.
now by the condition of elastic collision
also from above equation we have
So ball of mass 0.6 kg will rebound back with speed 0.267 m/s and ball of mass 1.2 kg will go forwards with speed 0.533 m/s.