Two balls were thrown simultaneously vertically upward: one from the surface of the earth at a speed of 20 m
| August 8, 2021 | education
Two balls were thrown simultaneously vertically upward: one from the surface of the earth at a speed of 20 m / s, the other from a height of 50 m at a speed of 10 m / s. Determine the time and coordinate of the meeting point of the balls.
Solution:
y1 = 20t – 5t˄2
y2 = 50 -10t – 5t˄2
y1 = y2
20t = 50 -10t
30t = 50 t = 1.67 s ~ 2 s
y = 40 * 20 = 20 m
Answer: 2s, 20 m
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