Grade 10Mechanics
From the top of a tower a ball is thrown up and it reaches the ground in 5 seconds.find initial velocity
From the top of a tower a ball is thrown up and it reaches the ground in 5 seconds.find initial velocity
1 Answer
Vikas TU
Acceleration (a) = 9.8 m/s2
Time (t) = 5 seconds
Final velocity (v) = 0
From the first equation of velocity:
v = u+at
- = u + 9.8 *5
u = - 49 m/sec
Negative sign indicates that direction of final displacement and velocity are opposite to the direction of initial velocity.
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