a sandwich is thrown upwards by a street vendor with velocity 10 m/s to a person in the second floor window of a building. if the vendor releases the sandwich from 2 m above the ground and the second floor window is 5 m above the ground at what velocity will the sandwich be moving when it is caught?
The distance flown by sandwich is
H = 5[m] - 2[m] = 3[m].
Let the time needed the sandwich to fly this distance be T. Then