Select the correct equations that show that a freely falling rock drops a distance of 45 m when it falls from rest for 3 s
s=g2⋅t/2=(10m/s2)2⋅(3s)/2=45m
s=g⋅t2/2=(10m/s2)⋅(3s)2/2=45m
s=t2/(2⋅g)=(3s)2/(2⋅(10m/s2))=45m
s=g⋅t/2=(10m/s2)⋅(3s)/2=45m