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A stomp rocket takes 3.1 seconds to reach its maximum height.

- What is its initial velocity? (Do not use units. If the answer is negative, please put a
negative sign in front of the answer.)

- What is its maximum height? (Do not use units. If the answer is negative, please put a
negative sign in front of the answer.)

Respuesta :

Answer:

Explanation:

Ignoring air resistance the time to rise will equal the time to fall and initial velocity will be the same magnitude as final velocity just before impact.

v = at

v = 9.8(3.1)

v = 30.38

v = 30 m/s

max height can be found knowing the velocity is zero at the top of its flight.

v² = u² + 2as

s = (v² - u²) / 2a

s = (0.00² - 30.38²) / (2(-9.8))

s =  47.089

s = 47 m

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