A ball is launched vertically upwards from ground level. It reaches a highest point of 12.0 m above the ground. Neglect air resistance. Choose up to be the +y direction. The ball was launched from ground level with an initial speed of:
A. 3.83 m/s.
B. 15.3 m/s.
C. 16.9 m/s.
D. 118 m/s.
Answer:B
A ball is launched vertically upwards from ground level. It reaches a highest point of 12.0 m above the ground. Neglect air resistance. Choose up to be the +y direction. The ball was launched from ground level with an initial speed of:
A. 3.83 m/s. B. 15.3 m/s. C. 16.9 m/s. D. 118 m/s.