3 Figure 3 shows an archer standing on the top of a castle tower. The castle...

 

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3 Figure 3 shows an archer standing on the top of a castle tower. The castle stands on horizontal ground. He fires an arrow horizontally at a speed of 55 ms ¹ from a height of 30 m above ground level. 30m Figure 3 Assume air resistance is negligible. Calculate: a the time taken for the arrow to reach the ground time..... b the distance from the base of the tower to the point at which the arrow enters the ground $ distance....... m c the angle at which the arrow enters the ground at the end of its flight. angle .................... 4 a A cricket bat causes an acceleration of 3400 m s² to a cricket ball travelling horizontally at 30 m s¹. After contact with the bat, the ball is travelling at 25 m s¹ in the opposite direction to its original motion. iCalculate the time that the ball was in contact with the bat. time = ii Describe how you would determine, experimentally, the speed of the cricket ball as it left the bat. ms 3 Figure 3 shows an archer standing on the top of a castle tower. The castle stands on horizontal ground. He fires an arrow horizontally at a speed of 55 ms ¹ from a height of 30 m above ground level. 30m Figure 3 Assume air resistance is negligible. Calculate: a the time taken for the arrow to reach the ground time..... b the distance from the base of the tower to the point at which the arrow enters the ground $ distance....... m c the angle at which the arrow enters the ground at the end of its flight. angle .................... 4 a A cricket bat causes an acceleration of 3400 m s² to a cricket ball travelling horizontally at 30 m s¹. After contact with the bat, the ball is travelling at 25 m s¹ in the opposite direction to its original motion. iCalculate the time that the ball was in contact with the bat. time = ii Describe how you would determine, experimentally, the speed of the cricket ball as it left the bat. ms