Question

Plz somebody answer checkpoint question: model rocket on pg 12- http://ocw.mit.edu/courses/physics/8-01sc-physics-i-classical-mechanics-fall-2010/translational-kinematics/one-dimensional-kinematics-and-free-fall/MIT8_01SC_slides04.pdf

Answer 1

To get the y-component of velocity just differentiate with respect to time the expression for y and differentiate the resultant expression to get the required acceleration.