Question

A message in a bottle is thrown off a cliff, horizontally, at a speed of 15 m-s 1. If the cliff top is 80. m
above sea level and ignoring the effects of air resistance, what is the speed of the bottle as it hits the
sea? Give your answer in m-s1 without units and to 2 significant figures .​

Answer 1

Answer:

Download velocity=0=u

distance=80=s

g=10

v^2=u^2+2gs

v^2=2×10×80=1600

v=400 Ans