1a: What is the torque caused by a 46 N force that is applied to an object at a distance of 7.52 m from the center of rotation if the angle between r and F is 63?

1b: A hollow ball is rolling without slipping along a horizontal surface. The mass of the ball is 8.7 kg and the linear velocity of the center of mass is 7.0 m/s. The radius of the ball is 0.25 m and the formula for the rotational inertia I of the ball is 2/3MR². What is the rotational kinetic energy of the ball?