Initial Kinetic Energy Calculator, Formula, Initial Kinetic Energy Calculation

Initial Kinetic Energy Calculator:

Enter the values of Final Kinetic Energy KEf_(J), Change in Mass dm_(kg) & Change in Mass dV_(m/s)  to determine the value of Initial Kinetic Energy KEi_(J).

Initial Kinetic Energy Formula:

The Initial Kinetic Energy KEi_(J) in Joules is Equal to the Final Kinetic Energy KEf_(J) in Joules is Subtraction by the Half into Multiply the Change in Mass dm_(kg) in kilogram and id Multiply the Change in Velocity dV_(m/s) in meter per second is squared.

The Equation of Initial Kinetic Energy can be written as,

KEi_(J) = KEf_(J) – (½ * dm_(kg) * dV²_(m/s))

Here,

KEi_(J) = Initial Kinetic Energy in Joules

KEf_(J) = Final Kinetic Energy in Joules

dm_(kg) = Change in Mass in kilogram

dV_(m/s) = Change in Velocity in meter per second

Initial Kinetic Energy Calculation:

1) Calculate the Initial Kinetic Energy and given for the Final Kinetic Energy = 450J, Change in Mass = 5kg, Change in Velocity = 7m/s.

Answer

KEi = KEf – (1/2 * dm * dV²)

KEi = 450 – (0.5 * 5 * 7²)

KEi = 327.5 Joules.

2) Calculate the Change in Velocity and given for the Final Kinetic Energy = 450J, Change in Mass = 5kg, Initial Kinetic Energy = 327.5 Joules.

Answer

KEi = KEf – (1/2 * dm * dV²)

327.5 = 450 – (0.5 * 5 * dV²)

dV = 7 m/s.

Work and Kinetic Energy: