A cannon, elevated at 40 is fired at a wall 300 m away on level ground, as shown in Figure Q3 23 The initial speed of the cannonball is 89 m s a How long does it take for the ball to hit the wall A 1 3 s B 3 3 s C 4 4 s D 6 8 s E 7 2 s b At what height h does the ball hit the wall A 39 m B 47 m C 7...

a The horizontal component of the initial velocity is given by ...

A cannon, elevated at 40 is fired at a wall 300 m away on level ground, as

Question:

A cannon, elevated at 40° is fired at a wall 300 m away on level ground, as shown in Figure Q3.23. The initial speed of the cannonball is 89 m/s.

v = 89 m/s 40 FIGURE Q3.23 300 m

a. How long does it take for the ball to hit the wall?

A. 1.3 s

B. 3.3 s

C. 4.4 s

D. 6.8 s

E. 7.2 s

b. At what height h does the ball hit the wall?

A. 39 m

B. 47 m

C. 74 m

D. 160 m

E. 210 m

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College Physics A Strategic Approach

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A cannon, elevated at 40 is fired at a wall 300 m away on level ground, as

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v = 89 m/s 40° FIGURE Q3.23 300 m

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a The horizontal component of the initial velocity is given by ...View the full answer

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