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>
Answer:
Explanation:
Given
mass of rock
Elevation of Rock
Distance traveled by rock with time
where, u=initial velocity
t=time
a=acceleration
here initial velocity is zero
when rock is 5 m from ground then it has traveled a distance of 5 m from top because total height is 10 m
velocity at this time
For this case we have that by definition, the kinetic energy is given by the following formula:
Where:
m: It is the mass
v: It is the velocity
According to the data we have to:
Substituting the values we have:
finally, the kinetic energy is
Answer:
Option A