Work, Power and EnergyHard
Question
A rocket of mass 6 × 103 Kg is arranged to be released in the vertically upward direction. If the velocity of the gas coming out is 103 m/s then in order to balance the weight of the rocket how much gas per second must escape out −
Options
A. 49·75 Kg/s
B.58·86 Kg/s
C.100 Kg/s
D.117 Kg/s
More Work, Power and Energy Questions
Two solid balls of rubber A and B whose masses are 200 gm and 400 gm respectively, are moving in mutually opposite direc...A spherical black body with a radius of 12 cm radiates 450 watt power at 500 K. If the radius were halved and the temper...Two spheres of the same material have radii 1 m and 4m and temperatures 4000 K and 2000 K respectively. The ratio of the...A force = (3x2+2x−7) N acts on a 2 kg body as a result of which the body gets displaced from x = 0 to x = 5m. The ...A particle is moving with a uniform speed in a circular orbit of radius R in a central force inversely proportional to t...