a stone is thrown vertically upwards if it take 30 sec to return to the ground how high does the stone go?
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the high the stone goes is 30 metre
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t=30/2=15
a=-9.8
v=0
v=u+at
0=u+-9.8×15
u=147
s=ut+1/2at^2
147×30+1/2×(-9.8)×15×15
495022 m
a=-9.8
v=0
v=u+at
0=u+-9.8×15
u=147
s=ut+1/2at^2
147×30+1/2×(-9.8)×15×15
495022 m
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