A rocket engine uses fuel and oxidizer in a reaction that produces gas particles having a velocity of 1380 ms-1

. The desired thrust is to be 195000 N.
16. What must be the fuel/oxidizer consumption rate (in kg s-1
)?
16.
17. If the initial weight of the rocket is 125000 N, what is its initial acceleration?
17.
18. What are the weight and acceleration of the rocket at t = 15.0 s after
ignition? 18.

19. What are the weight and acceleration of the rocket at t = 20.0 s after ignition?

Afaulty model rocket moves in the xy-plane (the positive y direction is vertically upward). the rocket's acceleration has components ax(t) = ? t2 and ay(t) = ? ? ? t, where ? = 2.50 m/s4 , ? = 9.00 m/s2 , and ? = 1.40 m/s3 . at t = 0 the rocket is at the origin and has velocity ~v0 = v0x ? i + v0y ? j with v0x = 1.00 m/s and v0y = 7.00 m/s. (a) calculate the velocity and position vectors as functions of time. (b) what is the maximum height reached by the rocket? (c) sketch the path of the rocket. (d) what is the horizontal displacement of the rocket when it returns to y = 0?