Answer to Question #290474 in Engineering for Arjun

Question

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.

2. A grasshopper is capable of jumping to a height of 5cm. Determine the takeoff speed of the grasshopper.

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?

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?

Answer 1

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