PHYSICS · Multi-part · CBSE · Physics · Force and Laws of Motion · Force and Laws of Motion
Problem
A rocket of mass 2.0×103kg is launched vertically upward. Its engines exert an upward thrust force of 3.2×104N. Neglect air resistance.
(a) Determine the magnitude and direction of the rocket’s acceleration at the instant of launch.
(b) If the thrust were reduced to 2.0×104N while the mass remains the same, would the rocket accelerate upward, downward, or remain at rest? Briefly justify your answer.