A ball is thrown vertically upward by a cricket player with an initial velocity of 40 m/s. if motion of ball accelerated by 10 m/s^2, then calculate 1) the maximum height reached by the ball
2) the distance covered by the ball when it reaches the player's hand
3) the displacement covered by the ball when it reached player's hand

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Which sound characteristic is not affected by the relative motion of an object