If heavy bodies are thrown upwards instead of being dropped down on Earth, they will follow a different trajectory but will ultimately be influenced by the force of gravity and return to the ground.
When a heavy body is thrown upwards, it initially moves against the force of gravity. The force exerted by the throw imparts an initial velocity to the object in the upward direction, opposing gravity's pull. As the object moves upward, the force of gravity continues to act on it, gradually slowing its upward velocity.
At a certain point, the object reaches its maximum height (the highest point of its trajectory) where its vertical velocity becomes zero. At this moment, the object begins to fall back towards the Earth under the influence of gravity. The same force that caused the object to slow down on its way up now accelerates it on its way down, increasing its velocity.
Once the object returns to the ground, its velocity is equivalent to the velocity it had when initially thrown upwards, but in the opposite direction. Due to factors such as air resistance and energy losses, the object may not return precisely to its original position, but it will come close.
It's important to note that the height reached by the object will depend on the initial velocity imparted to it during the upward throw, as well as factors such as air resistance and the specific shape and composition of the object.