Respuesta :
it went from 54 meters above the surface to 9 meters below the surface...
54 to the surface (0) = 54....from 0 to -9 = 9....so it fell (54 + 9) = 63 meters.
so if it fell 63 meters in 35 seconds, then it fell (63/35) = 1.8 meters per second <===
54 to the surface (0) = 54....from 0 to -9 = 9....so it fell (54 + 9) = 63 meters.
so if it fell 63 meters in 35 seconds, then it fell (63/35) = 1.8 meters per second <===