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2 January, 20:59

The Space Shuttle rocket ship starts vertically upward from the launch pad acceleration of 6.5 m/sec^2. (a) Find how much time it takes for the rocket ship to accelerate to 100 m/s. (b) At what height above the ground will the ship reach the velocity of 100 m/s?

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  1. 2 January, 23:27
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    (a) 15.4 second

    (b) 769.23 m

    Explanation:

    u = 0, a = 6.5 m/s^2, v = 100 m/s

    (a) Let t be the time taken

    Use First equation of motion

    v = u + a t

    100 = 0 + 6.5 x t

    t = 15.4 second

    (b) Let height covered is h.

    Use third equation of motion

    v^2 = u^2 + 2 a h

    100^2 = 0 + 2 x 6.5 x h

    10000 = 13 x h

    h = 769.23 m
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