99. (A)
Use, also, the facts that the speed is given by and that the point moves
counterclockwise; then = 4, yielding and at the given point. The
velocity vector, v, at (3, 4) must therefore be
Use, also, the facts that the speed is given by and that the point moves
counterclockwise; then = 4, yielding and at the given point. The
velocity vector, v, at (3, 4) must therefore be