Question

44 say me answer ........

Answer 1

200 (b) is correct answer

Answer 2

first velocity =v0

v^2-v0^2=2as

v^2=2×10×50=1000


when velocity is double then( 2v)^2=4v^2=4000

so 4000=2×10×s

S=4000/20=200m