physics

A shot putter throws the shot (mass=7.3kg) with an initial speed of 14.4 m/s at a 34.0 degree angle to the horizontal. Calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of 2.10m above the ground.

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  1. Who cares what the mass is ?
    horizontal problem:
    u = 14.4 cos 34 forever, calculate u

    vertical problem:
    Vi = 14.4 sin 34 initial speed up --- calculate Vi
    h = 2.10 + Vi t - 4.9 t^2
    at ground
    0 = 2.10 + Vi t - 4.9 t^2
    solve quadratic for t
    go back to horizontal equation with that t
    range = u t

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