Question

Falling object formula: h=-16t+s

Find how long it would take a penny if dropped from the top of the National Monument in Washington, DC
to hit the ground. The monument is 555.427 feet tall. Remember, t is the time in seconds, and s is the start
height of the object. Round your answer to nearest thousandths place. (3 points)

Answer 1

• 34.714 seconds

Explanation:

According to the question we have:

• Formula h = - 16t + s
• h = 0
• s = 555.427 ft
• t = ?

Substitute the given values and solve for t:

• 0 = - 16t + 555.427
• 16t = 555.427
• t = 555.427/16
• t = 34.714