Question

3. Missy Diwater, the former platform diver for the Ringling Brother's Circus, had a kinetic energy of 12,000 ) just prior to hitting the bucket of water. If Missy's mass is 40 kg, then what is her speed?​

Answer 1

v = 24.49[m/s]

Step-by-step explanation:

We must remember that kinetic energy can be calculated by means of a mathematical expression, which relates kinetic energy to mass and velocity

`E_(kin)=(1)/(2)*m*v^(2) \\`

where:

Ekin = kinetic energy = 12000 [J]

m = mass = 40 [kg]

v = velocity [m/s]

`12000=(1)/(2) *40*v^(2)\\24000=40*v^(2)\\600=v^(2)\\v=√(600)\\v=24.49[m/s]`