A javelin thrower standing at rest holds the center of the javelin behind her head, then accelerates it through a distance of $ 70 \, \text{cm} $ as she throws. She releases the $ 600 \, \text{g} $ javelin $ 2.0 \, \text{m} $ above the ground traveling at an angle of $ 30^\circ $ above the horizontal. In this throw, the javelin hits the ground $ 54 \, \text{m} $ away. Find the following:

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A javelin thrower standing at rest holds the center of the javelin behind her head, then accelerates it through a distance of $ 70 \, \text{cm} $ as she throws. She releases the $ 600 \, \text{g} $ javelin $ 2.0 \, \text{m} $ above the ground traveling at an angle of $ 30^\circ $ above the horizontal. In this throw, the javelin hits the ground $ 54 \, \text{m} $ away. Find the following:(a) The acceleration of the javelin during the throw.
, (b) The time it took for the javelin to hit the ground.
:

Jason · Accepted Answer

$ a \approx 410.4 $ m/s²
$ t \approx 2.60 $ s

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