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6 Nov 2019
A rock falls from a tower that is 73.5 m high . As it is falling . its height is given by the formula h = 73.5 -4.9t2 , with t in seconds . how many seconds will it take for the rock to hit the ground (h=0)? 1102.5 sec 8.6sec 3.9 sec 8.3 sec The position of an object moving in a straight line is given by s=2t2 -3t, where s is in meters and t is the time in second the object has been in motion .how long (to the nearest length ) will it take the object to move 15 meters? 16.0 sec 3.4 sec 3.6 sec 40.5 sec Show transcribed image text
A rock falls from a tower that is 73.5 m high . As it is falling . its height is given by the formula h = 73.5 -4.9t2 , with t in seconds . how many seconds will it take for the rock to hit the ground (h=0)? 1102.5 sec 8.6sec 3.9 sec 8.3 sec The position of an object moving in a straight line is given by s=2t2 -3t, where s is in meters and t is the time in second the object has been in motion .how long (to the nearest length ) will it take the object to move 15 meters? 16.0 sec 3.4 sec 3.6 sec 40.5 sec
Show transcribed image text Sixta KovacekLv2
16 Feb 2019