Kamakshya Pruseth
Last Activity: 7 Years ago
answer is 2. displacement is 0 as it reaches the point it was projected from
why other options are wrong:
1.accerelation under freefall is always g which is equal to 9.8 meters per second square.
3.average speed is 2h/t but as velocity is a vector quantity , velocity will be 0.
4.final velocity at projection point would be root over 2gh – u(square). thiss can be obtained by reaaranging v(square)-u(square)=2gh