A missile has a mass of 10^5 kg and exerts a force of 5 x 10^7N on its exhaust.
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A missile has a mass of 10^5 kg and exerts a force of 5 x 10^7N on its exhaust.

[From: ] [author: ] [Date: 13-02-20] [Hit: ]
4 m/s if no air resistance.H = 0.10000 = 0.5(490.T^2 = 40.T = 6.......
(a) What is the acceleration of the missile? (b) What is its velocity after 12 s? How long will it take to reach 10,000 m?

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a = F/m = (5x10^7N)/10^5 = 5x10^2 m/s^2.
A = a-g = (5x10^2) - (9.8) m/s^2 if going straight up from surface of the Earth.
V = AT = 490.2 m/s^2 x 12s = 5882.4 m/s if no air resistance.
H = 0.5AT^2
10000 = 0.5(490.2)T^2
T^2 = 40.8
T = 6.39s
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