A ball thrown vertically upwards falls back on the ground after 6 se – McqOptions

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1.	A ball thrown vertically upwards falls back on the ground after 6 second. Assuming that the equation of motion is of the form \[s=ut-4.9{{t}^{2}}\], where s is in metre and t is in second, find the velocity at \[t=0\]
A.	\[0\,m/s\]
B.	1 m/s
C.	29.4 m/s
D.	None of these
Answer» D. None of these

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