A volleyball is released three times from three different heights: 5 m, 10 m, and 20 m. Which statement is correct about the volleyball? The volleyball accelerates more quickly toward the ground when released from a higher height. The volleyball accelerates the same amount toward the ground each time. The volleyball accelerates more slowly toward the ground when released from a higher height. The volleyball may accelerate more quickly or slowly depending on its mass. A student is setting up an experiment with 10 different balls. The student wants to measure which ball hits the ground with the largest force when released from a box 5 feet above the ground. Which quantity should be measured to correctly calculate the force with which each ball hits the ground? the initial velocity of each ball the mass of each ball the rate at which the velocity of each ball increases the final velocity of each ball right before hitting the ground
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The correct statement about the volleyball being released from different heights is that the volleyball accelerates the same amount toward the ground each time. This is because the acceleration due to gravity is a constant near the Earth's surface, approximately 9.8 m/s², and it does not depend on the height from which an object is released.
For the student setting up the experiment to measure which ball hits the ground with the largest force when released from a box 5 feet above the ground, the quantity that should be measured to correctly calculate the force with which each ball hits the ground is the mass of each ball. The force with which the ball hits the ground can be determined by using the formula for force, which is mass times acceleration (F = ma). Since the acceleration due to gravity is constant, the mass of each ball is the variable factor that will determine the force of the impact.