physics

A body is thrown verticarry upwards with an initial velocity of 12m/s.(taking G to be 10m/s^2)
a)how far does it go during this first second?
b)find the maximum height it reaches.
c)how long does it remain in the air?

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  1. a) after 1 s the vertical velocity is 2 m/s
    ... so the average velocity is 7 m/s for the 1st sec

    b) similar to a)
    ... the object reaches its peak after 1.2 s
    ... the average velocity is 6 m/s

    c) time up equals time down
    ... 1.2 + 1.2

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  2. 1.2+1.2=2.4

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