Answer:t=0.54 s
Explanation:
Given
Jacob is traveling 5 m/s in North direction
Jacob throw a ball with a in south direction with a velocity of 5 m/s
Ball is thrown in opposite direction of motion of car therefore it seems as if it is dropped from car as its net horizontal velocity is 5-5=0
Time taken by ball to reach ground
[tex]s=ut+\frac{gt^2}{2}[/tex]
[tex]1.45=0+\frac{9.81\times t^2}{2}[/tex]
[tex]t^2=frac{2\times 1.45}{9.81}[/tex]
t=0.54 s
Motion of ball will be straight line