Question

question 13 (1 point)
suppose a ball is thrown downward in the absence of air resistance. make a statement concerning its acceleration.
its acceleration is constantly increasing.
its acceleration is constant.
its acceleration is constantly decreasing.
its acceleration is zero.
page 13 of 20

Explanation:

When an object is thrown downward in the absence of air resistance, the only force acting on it is the force of gravity. According to Newton's second law \(F = ma\), and the force of gravity \(F = mg\) (where \(g\) is the acceleration due to gravity). So, \(mg=ma\), which simplifies to \(a = g\). The acceleration due to gravity \(g\approx9.8\ m/s^{2}\) near the Earth's surface and is constant for objects in free - fall (neglecting air resistance).

Answer:

Its acceleration is constant.