A rescue flare is launched from a shipʼs deck toward a cliff top that is 10 m higher…
PHYSICS · Subjective · CBSE · Physics · Motion in a Plane · Motion in a Plane
Problem
A rescue flare is launched from a shipʼs deck toward a cliff top that is 10 m higher than the deck and 20 m away horizontally. The flare must reach the cliff top exactly 1.8 s after launch. Calculate the required initial speed of the flare in m/s. Use g=9.8m/s2 and give your answer to two significant figures.