Two bodies of masses m₁ and m₂ have equal momentum their kinetic energies E₁ and E₂ are in the ratio A. m²₁ : m²₂ B. m₁ : m₂ C. m₂ : m₁ D. √m₁ : √m₂ AnswerOption: C
How much water a pump of 2kW can raise in one minute to a height of 10m, take g = 10m/s²? A. 100 liters B. 1200 liters C. 1000 liters D. 1500 liters AnswerOption: B
A body of mass 2kg is thrown up vertically with K.E. of 490 joules. If the acceleration due to gravity is 9.8 m/s², the height at which the K.E. of the body becomes half its original value is given by: A. 10m B. 12.5m C. 25m D. 50m AnswerOption: B