A cannon elevated at 40° is fired at a wall 300 m away on level ground, as shown in Figu...

A cannon elevated at 40° is fired at a wall 300 m away on level ground, as shown in Figure Q3.24 . 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. 74 m

D. 160 m

E. 210 m