A 1Kg & A 10Kg iron ball are released from a certain height. Under free fall both the balls hit the ground at the same time. This happens because
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The Gajapatis of Odisha ruled a vast land comprising Andhra region, Odisha. Krishna Deva Raya's success at Ummatur provided the necessary impetus to carry his campaign into Coastal Andhra region which was in control of the Gajapati Raja Prataparudra Deva. The Vijayanagar army laid siege to the Udayagiri fort in 1512.[13] The campaign lasted for a year before the Gajapati army disintegrated due to starvation.[14] Krishna Deva Raya offered prayers at Tirupati thereafter along with his wives Tirumala Devi and Chinnama Devi.[15] The Gajapati army was then met at Kondaveedu, where the armies of Vijayanagara, after establishing a siege for a few months, began to retreat due to heavy casualties.[16] Then, Timmarusu, upon discovering a secret entrance to the unguarded eastern gate of the fort, launched a night attack that culminated with the capture of the fort and the imprisonment of Prince Virabhadra, the son of Gajapati Emperor Prataparudra Deva.[17] Saluva Timmarusu took over as governor of Kondaveedu thereafter.[citation needed]
Krishnadevaraya planned for an invasion of Kalinga, but the Gajapati Emperor, Prataparudra, was made privy to this plan. Prataparudra formulated his own plan to defeat Krishandevaraya and the Vijayanagara Empire. The confrontation was to happen at the fort of Kalinganagar. But the wily Timmarusu secured the information of Prataparudra's plan by bribing a Telugu deserter, who was formerly under the service of Prataparudra. When the Vijayanagara Empire did invade, Prataprudra was driven to Cuttack, the capital of the Gajapati empire.[18] Prataparudra eventually surrendered to Vijayanagara Empire, and he gave his daughter, Princess Jaganmohini, in marriage to Sri Krishnadevaraya.[19] Krishandevaraya returned all the lands that the Vijayanagara Empire captured to the North of the Krishna River; this made the Krishna river boundary between the Vijayanagar and the Gajapati Kingdoms.[20]
Krishnadevaraya established friendly relations with the Portuguese, who set up the Portuguese Dominion of India in Goa in 1510.[21] The Emperor obtained guns and Arabian horses from the Portuguese merchants.[22][23] He also utilized Portuguese expertise in improving water supply to Vijayanagaram