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Sahay Sir > Question Answers > NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions > Physics > Chapter 5 - NLM > An explosion breaks a rock into three parts in a horizontal plane. Two of them go off at right angles to each other. The first part of mass 1 kg moves with a speed of 12ms^−1 and the second part of mass 2 kg moves with 8ms^−1 speed. If the third part flies off with 4ms^−1 speed, then its mass is

An explosion breaks a rock into three parts in a horizontal plane. Two of them go off at right angles to each other. The first part of mass 1 kg moves with a speed of 12ms^−1 and the second part of mass 2 kg moves with 8ms^−1 speed. If the third part flies off with 4ms^−1 speed, then its mass is

A bullet of mass 10g moving horizontally with a velocity of 400 m/s strikes a wood block of mass 2 kg which is suspended by a light inextensible string of length 5 m. As a result A missile is fired for maximum range with an initial velocity of 20m/s. If g = 10m/s2 the range of the missile is