If you drop an object, it will accelerate down-

ward at a rate of g = 9.8 m/s2.
If you throw it downward instead, its accel-
eration (in the absence of air resistance) will
be

the same.

To determine the acceleration when an object is thrown downward, we can use the familiar equation of motion:

acceleration = g = -9.8 m/s^2

Here, the negative sign indicates that the object is moving in the downward direction. When an object is thrown downward, the acceleration remains the same as when it is dropped because acceleration due to gravity is constant near the surface of the Earth. So regardless of whether the object is dropped or thrown downward, the acceleration will be approximately -9.8 m/s^2, assuming there is no significant air resistance.