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QUESTION 8 An object 46 m above the ground is projected horizontally with an initial velocity of 25 m s7L Calculate the horizontal displacement of the object at the time it reaches the ground. (A) 77m (B) 120m (©) 190m (D) 240m
QUESTION 11 The diagram shows object A and object B being projected at different velocities. Which of the following statements is true? (A) Object A has a shorter flight time than object B. (B) Object A has a smaller maximum height than object B. (C) Object A has a larger horizontal velocity than object B. (D) Object A has a smaller horizontal displacement than object B.
QUESTION 18 Calculate the initial vertical velocity of a projectile with an initial velocity of 68 m s 'atan angle of 51° up from the horizontal. (A) 43ms! (B) 51ms! (C) 53ms! (D) 68ms !
QUESTION 2 Calculate the initial horizontal velocity of a projectile with an initial velocity of 38 m s!atan angle of 42° up from the horizontal. (A) 25ms (B) 28m g1 (C) 34ms! (D) 40ms!
QUESTION 12 Calculate the maximum height reached by a projectile with an initial velocity of 15 m s'atan angle of 30° up from the horizontal. (A) 2.87m (B) 3.83m (C) 8.6l m (D) 11.5m
QUESTION 9 Which diagram would result in the furthest horizontal distance travelled? (A) (B) ©) (D) Not to scale
QUESTION 22 (3 marks) A projectile has an initial velocity of 12 m s at an angle of 35° above the horizontal. Calculate the vertical component of the projectiles initial velocity. Show your working. Velocity = m s~ (to 1 decimal place)
QUESTION 27 (3 marks) Object A has an initial horizontal velocity of 4 m s Calculate the angle at which Object B needs to be projected if it has an initial speed of 17 m s but the same initial horizontal velocity as Object A. Show your working.
QUESTION 7 (6 marks) The diagram below shows two projectile motion scenarios Object A and Object B. Object A is released from an unknown height above the ground. It takes 4.20 seconds to reach the ground. At the same instance that Object A is released Object B is projected at an angle of 30.0° from the horizontal. Calculate the horizontal displacement of Object B given that it lands at the same time as Object A. Show your working. Horizontal displacement=____ m (to the nearest whole number)
QUESTION 6 (10 marks) A ball is thrown with an initial velocity of 8.0 m s! into a bucket as shown. 3.0m 1.8m Not to scale a) Calculate the time taken for the ball to reach its maximum height. Show your working. [4 marks] Ss (to two significant figures) b) Calculate the magnitude of the ball’s final velocity when it enters the bucket. Show your working. [6 marks] Final velocity = ms! (to two significant figures)
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