Answer:
7.5 seconds
Step-by-step explanation:
Using the formula
t = [tex]\frac{\sqrt{h} }{4}[/tex] ← substitute h = 900
t = [tex]\frac{\sqrt{900} }{4}[/tex] = [tex]\frac{30}{4}[/tex] = 7.5
Answer:
15 seconds
Step-by-step explanation:
Thinking process:
The time is given by the formula: t = [tex]\sqrt{\frac{h}{4} }[/tex]
The height h = 900
then the time is given by: t = [tex]\sqrt{\frac{900}{4} } \\= 15 seconds[/tex]
