Question

what is the formula for v given, KE=1/2mv^2?

Answer 1

v = (2*100J/10kg)^1/2 = (20 m^2s^-2)^1/2 = 4.47 m/s

Answer 2

without given amount of KE and m

Answer 3

@tanya123

Answer 4

To start, we simply rearrange the equation so we have velocity as a function of mass and energy. When we do this we get

v = (2KE/m)^1/2

Now we plug in the values to obtain a solution
v = (2*100J/10kg)^1/2 = (20 m^2s^-2)^1/2 = 4.47 m/s