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Sagot :
The acceleration of gravity is 9.8 meters per second².
So, 5 seconds after beginning from zero speed, its speed is (5 x 9.8) = 49 m/s² .
So, 5 seconds after beginning from zero speed, its speed is (5 x 9.8) = 49 m/s² .
Here
u= 0m/s
t=5sec
v=?
From newton's first equation of motion-
v=ut
v= 0* 5=0m/s
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