Half maximum velocity occurs at the point of half maximum kinetic energy which is exactly halfway down.
<h3>
Conservation of energy</h3>
The principle of conservation of energy states that energy can neither be created nor destroyed but can be converted from one form to another.
M.A = K.E + P.E
At the maximum height, the kinetic energy of the ball while potential energy is maximum.
At the half-way down, the ball kinetic energy of the ball is equal to the potential energy.
Thus, half maximum velocity occurs at the point of half maximum kinetic energy which is exactly halfway down.
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The force of gravity gets stronger.
The magnitude of the centripetal acceleration of the car as it goes round the curve is 4.8 m/s²
<h3>Circular motion</h3>
From the question, we are to determine the magnitude of the centripetal acceleration.
Centripetal acceleration can be calculated by using the formula

Where
is the centripetal acceleration
is the velocity
and
is the radius
From the given information

and 
Therefore,



Hence, the magnitude of the centripetal acceleration of the car as it goes round the curve is 4.8 m/s²
Learn more on circular motion here: brainly.com/question/20905151
The are elements on the periodic table
Force is transferred from the moving ball to the stationary ball.