Missy Diwater, the former platform diver for the Ringling Brother's Circus had a kinetic energy of 15000 J just prior to hitting the bucket of what. If Missy's mass is 50 kg, then what is her speed?
KEnergy=1/2 mass*speed^2
solve for speed.
i know but i have the KE and i have the mass but i have to find the speed and i don't know how to do that with the power of 2 and the 1/2
I hope the water was deep.
To find Missy's speed, we can use the formula for kinetic energy:
Kinetic Energy (KE) = 1/2 * mass * speed^2
In this case, we know the kinetic energy (KE) is 15000 J and the mass (m) is 50 kg.
15000 J = 1/2 * 50 kg * speed^2
First, let's rearrange the equation to solve for speed:
speed^2 = (2 * KE) / m
Now we can substitute the given values:
speed^2 = (2 * 15000 J) / 50 kg
Simplifying further:
speed^2 = 300 J / kg
To solve for speed, we need to take the square root of both sides:
speed = √(300 J / kg)
Calculating the square root:
speed ≈ 17.32 m/s
So, Missy's approximate speed just prior to hitting the bucket was 17.32 m/s.
2*KE=speed^2
take the square root of each side.
speed=sqrt(2*KE)