Question: QUESTION 6 A person throws a ball upward into the air with an initial velocity of 15 m/s. Her hand is 1.2 m above the

QUESTION 6 A person throws a ball upward into the air with an initial velocity of 15 m/s. Her hand is 1.2 m above the ground. Take g = 9.80 m/s2. Ignore air resistance and take downwards as -ve. What is the acceleration at the highest point (B)? 9.8 QUESTION 7 A person throws a ball upward into the air with an initial velocity of 12 m/s. Her hand is 1.2 m above the ground. Take g = 9.80 m/s2. Ignore air resistance and take downwards as -ve. Calculate the maximum height (in m) of the ball (from the hand). Leave your answer to 1 d.p. 6.1QUESTION 8 A person throws a ball upward into the air with an initial velocity of 9 m/s. Her hand is 1.2 m above the ground. Take g = 9.80 m/s2. Ignore air resistance and take downwards as -ve. Calculate how much time (in s) the ball comes back to the hand.. Leave your answer to 1 d.p. 1.4 QUESTION 9 A person throws a ball upward into the air with an initial velocity of 11 m/s. Her hand is 1.2 m above the ground. Take g = 9.80 m/s2. Ignore air resistance and take downwards as -ve. Calculate at what time t (in s) the ball passes a point 2.00 m (a second time) above the person's hand.. Leave your answer to 1 d.p. 0.2 QUESTION 10 Question: "A boat's speed in still water is VB/V=2.0 m/s. It heads directly across the river whose current has speed vw/s=1.0 m/s. If the river is 16 m wide, how much time will it take to cross the river?" Response: We know that to time = 16m / speed. Which speed should you use? O 1.0 O 2.0 O V22+ 12QUESTION 11 A shot-putter throws from a height h = 2.1 m above the ground, with an initial speed of 15.1 rnis. If the angle of launch is 30". determine how much time the shot put is in the air before hitting the ground. Take 9 = 9.80 W52. Ignore air resistance and take downwards as we. Leave your answer to 1 d.p

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