A rocket of mass `m_0` has attained a speed equal to its exhaust speed and that time the mass of the rocket is `m`. Then the ratio `m_0/m` is (neglect gravity)

The rate of mass of the gas emitted from the rear of a rocket is initially 0.1 kg//s . If the speed of the gas relative to the rocket is 50 m//s and the mass of the rocket is 2 kg , then the acceleration of the rocket in m//s^(2) is

A rocket of initial mass 6000kg ejects mass at constant rate of 200 kg/sec. with constant relative speed of 800 m/sec. The acceleration of the rocket after 5 sec is (neglect gravity)

A rocket of initial mass 6000kg ejects mass at constant rate of 200 kg/sec. with constant relative speed of 800 m/sec. The acceleration of the rocket after 5 sec is (neglect gravity)

A rocket is ejecting a mass m of gases per unit time with velocity V relative to the rocket, the thrust on the rocket is:

A particle of mass m_0 , travelling at speed v_0 . Strikes a stationary particle of mass 2m_0 . As a result of the particle of mass m_0 is deflected through 45^@ and has a final speed of v_0/sqrt2 . Then the speed of the particle of mass 2m_0 after this collision is

A particle of mass m_0 , travelling at speed v_0 . Strikes a stationary particle of mass 2m_0 . As a result of the particle of mass m_0 is deflected through 45^@ and has a final speed of v_0/sqrt2 . Then the speed of the particle of mass 2m_0 after this collision is

A rocket of initial mass 6000 kg ejects mass at a constant rate of 16 kgs^-1 with constant relative speed of 11 kms^-1 . What is the acceleration of the rocket a minute after the blast? (Neglect gravity).

A rocket is ejecting g 50 of gases per sec at a speed of 500m//s . The accelerating force on the rocket will be