20 m s 40° P 60 m FIGURE 1 1. FIGURE 1 shows a ball being thrown from the top of a building towards a wall 60 m away. The initial velocity of the ball is 20.0 ms-1 at 40° to the horizontal. (i) How much time does it take to hit the wall? [Answer: t = 3.92 s ] (ii) What is the distance between P and the position the ball strike the wall? [Answer: =-24.98 m]

An Introduction to Physical Science
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Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
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20 m s
40°
P
60 m
FIGURE 1
1. FIGURE 1 shows a ball being thrown from the top of a building towards a wall 60 m
away. The initial velocity of the ball is 20.0 m s-1 at 40° to the horizontal.
(i) How much time does it take to hit the wall? [Answer: t = 3.92 s ]
(ii) What is the distance between P and the position the ball strike the wall? [Answer:
s,
=-24.98 m]
(iii) What is the speed of the ball when it strikes the wall? [Answer: v= 29.8 m s
Transcribed Image Text:20 m s 40° P 60 m FIGURE 1 1. FIGURE 1 shows a ball being thrown from the top of a building towards a wall 60 m away. The initial velocity of the ball is 20.0 m s-1 at 40° to the horizontal. (i) How much time does it take to hit the wall? [Answer: t = 3.92 s ] (ii) What is the distance between P and the position the ball strike the wall? [Answer: s, =-24.98 m] (iii) What is the speed of the ball when it strikes the wall? [Answer: v= 29.8 m s
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