A rocket is launched upward from the earth surface whose velocity time graph shown in the figure.Then maximum height attained by rocket

A rocket is launched upward from the earth surface whose velocity time graph shown in the figure.Then maximum height attained by rocket ) A rocket is launched upward from the earth is surface whose velocity time graphs shown in figure, Then maximum height attained by the rocket is . 1000 (1) 1 km (3) 100 km 140 (2) 10 km (4) 60 km In above question, height covered by the rocket before retardation is : (1) 1 km (3) 20 km (2) 10 km (4) 60 km

Dear Student,

Maximum height 
 hmax = Area under the curve = 12×120 × 1000 = 60000m = 60km(4)

Height covered before retardation: 
h = Area of the triangle till A= 12×20×1000 = 10000m = 10km(2).

Regards

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In the above question mean velocity of rocket during the time to attaon maximum height

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