new to physics. Can you help me to answer these questions? Im a late enrolee, trying to catch up. Thanks!

A 10kg rock and a 5kg toy is dropped at the same height from a tall building Neglecting air friction, which object will hit the ground first? Rock Toy O Both will hit the ground at the same time If the acceleration of an object is zero, then the object cannot be moving True False It depends Cannot be determined A ball is thrown directly straight upward from the ground with at initial velocity of 20m/s, at the highest point of its motion, the ACCELERATION of the ball is Zero 9 8m/52 20m/s'2 Cannot be determined A ball is thrown directly straight upward from the ground with at initial velocity of 20m/s, at the highest point of its motion, the VELOCITY of the ball is 9.8m/5 20m/s Cannot be determined In the absence of air resistance, all objects fall with constant acceleration toward the surface of the Earth. g is approximately defined as 9.0m/s*2 () The first statement is correct while the second statement is false () The first statement is false while the second statement is true Both statements are true