Work, Energy and Power

Related Questions

• A force of 5 N acts on a 15 kg body initially at rest. The work done by the force during the first second of motion of the body is

  ---

• A spring with spring constant k is extended from $x = 0$to$x = {x_1}$. The work done will be

  ---

• Two putty balls of equal mass moving with equal velocity in mutually perpendicular directions, stick together after collision. If the balls were initially moving with a velocity of $45\sqrt 2 \,m{s^{ - 1}}$ each, the velocity of their combined mass after collision is

  ---

• A stationary particle explodes into two particles of a masses m1 and m2 which move in opposite directions with velocities ${v_1}$ and ${v_2}.$ The ratio of their kinetic energies ${E_1}/{E_2}$is

  ---

• The quantity that is not conserved in an inelastic collision is

  ---