A dynamite blast at a quarry launches a rock straight upward

Reference no: EM13555299

A dynamite blast at a quarry launches a rock straight upward, and2.5 s later it is rising at a rate of 18 m/s. Assuming airresistance has no effect on the rock, calculate its speed(a) at launch and (b)5.3 s afterlaunch

Reference no: EM13555299

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