Answer:
Taking it was dropped with inital velocity of 0m/s.
v = u+at
v = 0 + 9.8*1.5
v = 14.7s
(a=9.8m/s^2 << That's the acceleration due to gravity)
Explanation:
The least count of the normal scale is 1mm whereas the least count of vernier calliper is 0.01 mm
The student needs to add A. krypton and D. barium.