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From the top of a cliff, a person uses a slingshot to fire a pebble straight downward, which is the negative direction. the initial speed of the pebble is 9.0 m/s. (a) what is the acceleration (magnitude and direction) of the pebble during the downward motion? is the pebble decelerating? explain, (b) after 0.50 s, how far beneath tine cliff t
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From the top of a cliff, a person uses a slingshot to fire a pebble straight downward, which is the...
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