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{"ops":[{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"1. A ball traveling in the +x direction hits the wall at 30m\/s and rebounds at 25m\/s. If the ball is in contact with the wall for 4ms, determine the average acceleration of the ball during this time interval."},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":" 2. A grasshopper is capable of jumping to a height of 5cm. Determine the takeoff speed of the grasshopper."},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"3. Matthew throws a soda drink bottle vertically upward to his friend, who is in a window 5m above. The bottle is caught 2s later. What was the initial velocity given to the soft drink bottle?"},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"4. A bullet has a speed of 350m\/s as it leaves a rifle. If it is fired horizontally from a cliff 6.4 m above a lake, how far does the bullet travel before striking the water?"},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"}]}

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