Question

A dolphin in an aquatic show jumps straight up out of the water at a velocity of 13.0 m/s. (a) List the knowns in this problem. (b) How high does his body rise above the water? To solve this part, first note that the final velocity is now a known and identify its value. Then identify the unknown, and discuss how you chose the appropriate equation to solve for it. After choosing the equation, show your steps in solving for the unknown, checking units, and discuss whether the answer is reasonable. (c) How long is the dolphin in the air? Neglect any effects due to his size or orientation.

a) $a = -9.80 \textrm{ m/s}^2$, $v_o = 13 \textrm{ m/s}$, $y_o = 0 \textrm{ m}$

b) $8.62 \textrm{ m}$

c) $2.65 \textrm{ s}$

Solution Video