Answer:
The last one.
Step-by-step explanation:
Solve using the Pythagorean theorem.
The hypotenuse is c.
Step-by-step explanation:
I have answered ur question
Answer:

Step-by-step explanation:
We are given an expression to solve for the displacement (x), so in order to find velocity (v), we need to differentiate the function.
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Solving :
⇒ 
⇒ 
⇒ 
⇒ 
Using this equation, we can find the velocity if a value of t is given.