. On a certain planet , a small stone tossed up at 15m/s vertically uploads takes 7.5secs to
return to the ground. What is the acceleration due to gravity on the planet ?
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Answer:
Answer is (-3.33) m/s^2
Explanation:
Initial velocity = u = 15 m/s.
Final velocity = v = 0 m/s.
Time = t = 7.5 seconds.
Therefore,
Acceleration = a = v-u/t
= 0-15/7.5 [Substituting the values]
= -15/7.5 m/s^2
= (-3.33) m/s^2
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