Solve the each parts of following question given below:
Question: Two ships, A and B, leave port at the same time. Ship A travels northwest at 25 knots and ship B travels at 35 knots in a direction 40° west of south. (1 knot = 1 nautical mile per hour),
Part I: What is the magnitude the velocity of ship A relative to B?
___knots
Part II: What is the direction of the velocity of ship A relative to B?
___knots
Part III: After what time will the ships be 100 nautical miles apart?
___knots
Part IV: What will be the bearing of B (the direction of B's position) relative to A at that time?
___degrees west of south
I need help to determine the magnitude the velocity of ship A relative to B.