Physics, 10.03.2020 05:56, tystar84

A dynamite blast at a quarry launches a rock straight upward, and 1.7 s later it is rising at a rate of 17 m/s. Assuming air resistance has no effect on the rock, calculate its speed (a) at launch and (b) 4.9 s after launch.

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A dynamite blast at a quarry launches a rock straight upward, and 1.7 s later it is rising at a rate...