The correct answer is B the total velocity is equal at both landing and launch because before your about launch you have 0 velocity then when you have landed you also have 0 velocity. Hope This Helps
Answer:
magnitude of net magnetic field at given point is

Explanation:
As we know that magnetic field due to a long current carrying wire is given as

here we we will find the magnetic field due to wire which is along x axis is given as

r = 2 m
now we have

into the plane
Now similarly magnetic field due to another wire which is perpendicular to xy plane is given as

r = 2 m
now we have

along + x direction
Since the two magnetic field is perpendicular to each other
So here net magnetic field is given as


It will take 21s for yhe alligator to crawl that distance. Reported answer contains 2 Significant Figures.