a Displacement from A to B b Average velocity from A to B c Average speed from

# A displacement from a to b b average velocity from a

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a) Displacement from A to B. b) Average velocity from A to B. c) Average speed from A to B. d) If the bee's average speed from B to C is the same as from A to B, at what time would it arrive at point C? e) Average acceleration from B to C. y (m) A O C B 1.5 3.5 1.5 2.0 x (m) 3.6 1.4 5. A 0.01 kg bullet is fired 2.00 m above ground level at an angle of 25° to the horizontal and with an initial speed of 250 m/s. The bullet strikes a high cliff that is at a distance of 3,400 m from the place where the bullet is fired. Neglect air friction. Calculate: a) the time required for the bullet to strike the high cliff. b) the height at which the bullet strikes the high cliff. c) the magnitude and direction of the velocity of the bullet just before it strikes the high cliff. 6. A soccer player kicks a ball towards the net at a speed of 17.0 m/s at an angle of 32.0 ° above the horizontal. The ball leaves the soccer player’s foot 0.20 m above the ground and follows a parabolic trajectory. As the ball falls back towards the ground, it is caught by the goalkeeper at a height of 1.70 m above the ground. a) What is the maximum height above the ground that the ball attains? b) How long does it take for the ball to reach the goalkeeper? c) What is the horizontal distance travelled by the ball from the point where it was kicked to the point where it was caught? d) What is the velocity of the ball immediately before it is caught? Bonus Question: 7. A hunter stands at the edge of a cliff and fires an arrow with a speed of 95.0 m/s at an angle of 37 ° above the horizontal. It reaches its target in the valley in 14.0 seconds. Neglecting air friction, find: a) the horizontal distance travelled by the arrow. b) the height of the cliff. c) the angle of impact below the horizontal. #### You've reached the end of your free preview.

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