Lotta kicked a 550 gram soccer ball, which left the edge of a cliff with a speed of 12.3m/s (E). If the cliff was 15.0meters high, how far from the base did the soccer ball land. cacoose
+129847 We need to solve for the time to hit the ground...and we have
0 = -4.9t^2 + 15 subtract 15 from both sides
-15 = -4.9 t^2 divide both sides by -4.9
-15 / - 4.9 = t^2 take the square root of both sides
t = about 1.75s
So......the soccer ball landed
12.3 (1.75) = about 21.525m from the base of the cliff
+129847 We need to solve for the time to hit the ground...and we have
0 = -4.9t^2 + 15 subtract 15 from both sides
-15 = -4.9 t^2 divide both sides by -4.9
-15 / - 4.9 = t^2 take the square root of both sides
t = about 1.75s
So......the soccer ball landed
12.3 (1.75) = about 21.525m from the base of the cliff
