__Initial Kinetic Energy Calculator:__

__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:__

__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)} * dV^{2}_{(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:__

__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 * dV^{2})

KEi = 450 – (0.5 * 5 * 7^{2})

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 * dV^{2})

327.5 = 450 – (0.5 * 5 * dV^{2})

dV = 7 m/s.

__Work and Kinetic Energy:__

__Work and Kinetic Energy:__