Atest rocket is launched vertically from ground level (y=0), at time t=0.0s. the rocket engine provides constant upward acceleration during the burn phase. at the instant of engine burnout, the rocket has to 49m and acquired velocity of 30m/s. what is the maximum height that the rocket will reach a. 95 b. 80 c.103 d.112 e.184

Once the engine burns out, the rocket is in freefall with initial height 49 m and initial velocity 30 m/s. At its maximum height, its velocity will be 0 m/s, as it's uniformly accelerating downward at 9.81 m/s^2. At this point, we have

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.