posted by Mina .
An upward force of 35 N is applied via a string to lift a ball with a mass of 2.1 kg.
(a) What is the net force acting upon the ball?
magnitude 1 N
direction 2 ---Select--- upward downward
(b) What is the acceleration of the ball?
magnitude 3 m/s2
direction 4 ---Select--- upward downward
(b) What is the acceleration of the ball if an upward force of 64 N is applied?