Final answer:
The unnecessary information to find the maximum height a brick will reach is the brick's mass. The vertical speed of the brick, the gravitational constant, and the height from which it is released are required to calculate the maximum height.
Step-by-step explanation:
To find the maximum height above ground level that a brick will reach when tossed upwards, the brick's mass is the unnecessary piece of information (A). The maximum height is determined by the vertical speed of the brick at the time it is released (B), the gravitational constant (C), and not by the brick's mass due to the independence of mass in the equations of motion under gravity. However, knowing the height above ground that the brick is released (D) is also necessary if the brick is not tossed from ground level.
To show that the acceleration of an object is independent of the object's velocity, a student could conduct an experiment using three balls (A, B, C). They would need to measure the time it takes for each ball to reach the ground, and in the case of Ball A and Ball C, additionally measure the initial vertical and horizontal velocities. Acceleration due to gravity can then be calculated and compared for each ball.