A particle is projected from ground level with an initial velocity of 35 m/s at an angle of tan inverse 3/4 to the horizontal. Find the time for which the particle is more than 2m above the ground .

A particle is projected from ground level with an initial velocity of 35 m/s at an angle of tan inverse 3/4 to the horizontal. Find the time for which the particle is more than 2m above the ground .