A body is projected vertically up with velocity 98 . After 2 s if the acceleration due to gravity of earth disappears, the velocity of the body at the end of next 3 s is
Velocity at t = 2
v = u +at = 98 - 9.8 x 2 = 98 -19.6
v= 78.4 m/s
speed remains same at t= 3