A force exerts an impulse I on a particle changing its speed from u to 2u. The applied force and the initial velocity are oppositely directed along the same line. The work done by the force is:
Sahay Sir > Question Answers > A force exerts an impulse I on a particle changing its speed from u to 2u. The applied force and the initial velocity are oppositely directed along the same line. The work done by the force is:
A rocket of mass 4000 kg is set for vertical firing. How much gas must be ejected per second so that the rocket may have initial upwards acceleration of magnitude 19.6 m/s2 [Exhaust speed of fuel =980m/s]
26
Nov
A rocket of mass 4000 kg is set for vertical firing. How much gas must be ejected per second so that the rocket may have initial upwards acceleration of magnitude 19.6 m/s2 [Exhaust speed of fuel =980m/s] A force exerts an impulse I on a particle changing its speed from u to 2u. The applied [...]
An open water tight railway wagon of mass 5×103kg coasts at an initial velocity of 1.2m/s without friction on a railway track. Rain falls vertically downwards into the wagon. What change then occurred in the kinetic energy of the wagon, when it has collected 103 kg of water ?
26
Nov
An open water tight railway wagon of mass 5×103kg coasts at an initial velocity of 1.2m/s without friction on a railway track. Rain falls vertically downwards into the wagon. What change then occurred in the kinetic energy of the wagon, when it has collected 103 kg of water ? A force exerts an impulse I [...]
A ball is projected from ground with a velocity V at an angle θ to the vertical. On its path it makes an elastic collision with a vertical wall and returns to ground.The total time of flight of the ball is
26
Nov
A ball is projected from ground with a velocity V at an angle θ to the vertical. On its path it makes an elastic collision with a vertical wall and returns to ground.The total time of flight of the ball is A force exerts an impulse I on a particle changing its speed from u [...]
A force exerts an impulse I on a particle changing its speed from u to 2u. The applied force and the initial velocity are oppositely directed along the same line. The work done by the force is:
26
Nov
A force exerts an impulse I on a particle changing its speed from u to 2u. The applied force and the initial velocity are oppositely directed along the same line. The work done by the force is: A force exerts an impulse I on a particle changing its speed from u to 2u. The applied [...]