Question
The velocity of a projectile at the initial point A is (2 i + 3 j) m/s. Its velocity (in m/s) at point B is,
-
-2 i - 3 j
-
-2 i + 3 j
-
2 i - 3 j
-
2 i + 3 j
Solution
C.
2 i - 3 j
From the fig,, the X component remain unchanged, while the Y-component is reverse. Then, the velocity at point B is (2 i - 3 j) m/s.
