a ball thrown vertically up ward reaches at the 80 cm calculated the reach the heighest point
Answer (1)
7th Oct, 2020
using the equation: v = u +at we can get the answer.
At highest point, velocity, v = 0 m/s and acceleration, a = -g = -9.8 m/s^2.
Initially the velocity, u = 49 m/s.
Therefore, 0 = 49 - 9.8t => t = (-49)/(-9.8) = 5 seconds.
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