Question

a helicopter takes off and at height of 500m,a stoneis dropped which reacheson the surface of earth after 6s. What was the velocity of the helicopter when the stone was dropped

Answer 1

Answer:

S=ut+1/2a$tx^{2}$

Explanation:

a=10m/s

t=6sec

500=6u+180

500-180=6u

320=6u

320/6=u