Work, Energy and Power

Related Questions

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

  ---

• From an automatic gun a man fires 360 bullet per minute with a speed of 360 km/hour. If each weighs 20 g, the power of the gun is

  ---

• Two springs have their force constant as ${k_1}$ and ${k_2}({k_1} > {k_2})$. When they are stretched by the same force

  ---

• If velocity of a body is twice of previous velocity, then kinetic energy will become

  ---

• A spring when stretched by 2 mm its potential energy becomes 4 J. If it is stretched by 10 mm, its potential energy is equal to

  ---