The upward velocity of the 5 kg block is v1 = 3 m/s when it is at a height ht = 10 m from the sandy surface. Determine time to stop the motion of the block if the average impulsive force acting on the block when it strikes the sand ground is 358.12 N. Neglect the distance the block dents into the sand. Assume the block does not rebound. Neglect weight of block during impact.
t=_____________