You place a large pebble in a slingshot, pull the elastic band back to your chin, and release it, launching the pebble horizontally at a speed of 100 cm/s. you then repeat the exact same procedure (pulling the elastic band back the same distance) with a smaller pebble. the smaller pebble leaves the slingshot with a speed of 500cm/s. how does the mass of the larger pebble compare to that of the smaller pebble? select the correct answer o the larger pebble has v5 times more mass o this question cannot be answered without knowing the effective spring constant of the elastic band. o the larger pebble has 2 times more mass. the larger pebble has 5 times more mass. your answer o the larger pebble has 25 times more mass.