Multiple Choice
Solve the problem. Unless stated otherwise, assume that the projectile flight is ideal, that the launch angle is measured from the horizontal, and that the projectile is launched from the origin over a horizontal surface
-A spring gun at ground level fires a tennis ball at an angle of . The ball lands away. What was the ball's initial speed? Round your answer to the nearest tenth.
A) 14.7 m/sec
B) 11.3 m/sec
C) 128.7 m/sec
D) 3.6 m/sec
Correct Answer:

Verified
Correct Answer:
Verified
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