Answer:
a) [tex]V_{B/A} = V_B - V_A[/tex]
b) [tex]a_{B/A} = 11m/s^2[/tex]
Explanation:
Since we don't have any diagram or image, I will make these assumptions in order to be able to answer the questions:
- They are moving in a straight line
- They both move in the same direction
With these assumptions we can say that their velocities have the same sign, so the velocity of B relative to A would be:
[tex]V_{B/A} = V_B - V_A[/tex] If, for example, Vb = 20m/s and Va = 30m/s then:
[tex]V_{B/A} = -10m/s[/tex] This would be the answer for part (a)
If they both move in the same direction, their accelerations would be:
[tex]a_A = -8m/s^2[/tex] and [tex]a_B = 3m/s^2[/tex] So, the acceleration of B relative to A would be:
[tex]a_{B/A} = a_B - a_A = 3 - (-8) = 11m/s^2[/tex]
