10. An eraser is thrown from a hand directly upwards. (2) a) Fill in the blank with the correct term: In the instant the eraser leaves the hand, the velocity of the eraser is in the (upward/downward) direction and the acceleration of the eraser is in the (upward/downward) direction. @ ADLC All Rights Reserved (2022) 6 Physics 20: SUMMER Assignment 1 b) During its motion (after it leaves the hand and before it returns), does the eraser ever have an instantaneous velocity of zero? Explain. (1)c) During its motion (after it leaves the hand and before it returns), does the eraser ever have an acceleration of zero? Explain. (1) 11. If you slam on the breaks at a red light, could your acceleration be positive? Explain why or why not