Can please get help with this, with all work so i will be able to understand more.

41. H SSM A locomotive is accelerating at 1.6 m/s'. It passes through a 20.0-m-wide crossing in a time of 2.4 s. After the locomotive leaves the crossing, how much time is required until its speed reaches 32 m/s? (Hint: find first the velocity after passing the track first using two kinematic equations together.) 7x 20.0m 49. E SSM A hot-air balloon is rising upward with a constant speed of 2.50 m/s. When the balloon is 3.00 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground? (Hint: the compass is the free falling object and initially it has the same velocity as the hot-air balloon.) 61. M CHALK SSM A cement block accidentally falls from rest from the ledge of a 53.0-m-high building. When the block is 14.0 m above the ground, a man, 2.00 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have to get out of the way? (Hint: find first the velocity of the block when it is 14.0 m above the ground.)