Calculating Distance and Position of Two Moving Objects in 2D Space

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To calculate the distance between two moving soccer players, Sherman and Malissa, their velocities and directions must be analyzed. Sherman runs east at 4.00 m/s, while Malissa runs at 5.40 m/s at a 60.0˚ angle north of east. To determine when they are 25.0 m apart, the time can be calculated using their position vectors and the displacement vector between them. After 4.00 seconds, their positions can be computed, and the distance between them can be found by calculating the modulus of the vector difference of their positions. This approach allows for a clear understanding of their relative positions over time.
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HELP! I have no clue how to figure out how far apart they are! How would I figure out how far the 2 soccer players are?


Two soccer players, Sherman and Malissa , begin running from approximately the same point at the same time. Sherman runs in easterly direction at 4.00 m/s, while Malissa takes off in a direction 60.0˚ north of east (i.e. [N 30.0˚ E]) at 5.40 m/s.
(a) How long is it before they are 25.0 m apart?
(b) How far apart are they after 4.00 s?
 
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Find the position vector of both the player at any instant. Then the the displacement vector at any instant will be the difference in the position vectors.
 
Show the position of the two players at any time.Then find the modulus of the vector difference between their position.
 

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