The Height (In Meters) of a Projectile Shot Vertically Upward $5.5$

question 58

Multiple Choice

The height (in meters) of a projectile shot vertically upward from a point $5.5$ m above ground level with an initial velocity of 25.48 m/s is $h=5.5+25.48 t-4.9 t^{2}$ after t seconds.

a. When does the projectile reach its maximum height?
b. What is the maximum height?

• A) \( 2.4 \mathrm{~s} \)
• \( 34.428 \mathrm{~m} \)
• B) \( 2~s \)
• \( 32.86 \mathrm{~m} \)
• C) \( 2.6 \mathrm{~s} \)
• \( 38.624 \mathrm{~m} \)
• D) \( 2.8 \mathrm{~s} \)
• \( 34.428 \mathrm{~m} \)
• E) \( 2.3 \mathrm{~s} \)
• \( 34.183 \mathrm{~m} \)

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