Thor, Norse God of Thunder, is rumored to be the strongest of the Asgardians. Suppose in his battle against Thanos, Thor lifts a mass of 9.8 gigagrams with an upward velocity of 6.8 cm/s to a maximum height.The mass is initially at rest and reaches its upward speed because of a net force of 26.2 kilonewtons exerted upward. For how long (in seconds) is this force applied?