The roller at A is moving with a velocity of vA=4m/s and has an acceleration of aA=2m/s2 when xA=3.7m (Fiqure 1) Determine the velocity of block B at this instant. - Part B Determine the acceleration of block B at this instant. Express your answer to three significant figures and include the appropriate units. Enter positive value if the acceleration is upward and negative value if the acceleration is downward. Provide Feedback Figure