9 0 Paragraph for Question Nos 8 to 10 A physics tutor

Last updated: 6/12/2023

9 0 Paragraph for Question Nos 8 to 10 A physics tutor launches a home built model rocket straight up into the air At t 0 the rocket is at y 0 with V t 0 0 The acceleration of the rocket is given by g ag Bt40 t tb where t ag B 1 4 A V a 1 gt C V a 1 gt A V The expression for the velocity V t valid at all times in the interval 0 t t is 1 1 B V a 1 gt Bts 3 A at agt agt gt ay Bts is the time at which fuel burns out a is a positive dimensionless number 1 1 5 Bts g t to The expression for the velocity V t valid for the time interval t t is 1 B V g t t 4 B 5 at 1 D V a 1 gt Bts The time taken for rocket to reach its maximum height is C V g t t D V agt gt 1 at integrate ay g txg BX witt D at 1 2