A 2400 kg rocket is travelling in outer space with a velocity of 150 m/s towards the sun. It wishes to alter its course by 300 and can do this by shooing its rockets chiefly in a direction perpendicular to its original motion. If the small rockets are expelled at a speed 2700 m/s. What mass has to be expelled ?

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Q: A 2400 kg rocket is travelling in outer space with a velocity of 150 ms-1 towards the sun. It wishes to alter its course by 300 and can do this by shooing its rockets chiefly in a direction perpendicular to its original motion. If the small rockets are expelled at a speed 2700 m/s. What mass has to be expelled ?

(a) 92 kg

(b) 214 kg

(c) 134 kg

(d) 312 kg

Ans: (c)

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