Question

In figure A, a ball with a weight of 32.0 N is supported by a string. The ball hangs over a beaker of fluid. The beaker sits on a scale, which reads 18.0 N. In figure B, the ball is completely submerged in the fluid, and the tension in the string is 10.0 N. In figure C, the ball is exactly half submerged. In figure D, the string has been cut, and the ball is resting at the bottom of the beaker. In each picture, the ball is in equilibrium.

scale

(a) In figure A, determine the magnitude of the tension in the string.

(b) In figure B, determine the magnitude of the buoyant force acting on the ball.

(c) In figure B, what is the scale reading?

(d) In figure C, determine the magnitude of the buoyant force acting on the ball.

(e) In figure C, determine the magnitude of the tension in the string.

(f) In figure C, what is the scale reading?

(g) In figure D, determine the magnitude of the buoyant force acting on the ball.

(h) In figure D, what is the scale reading?

Answer 1

03 2-10 22N 22 (a) T= weight = [32]~ O Fe = 32-10 = 22JN ce) Scale reading - 32718-22 - [ 28 ]n (d ) Es= Pug = P² g = 22 - [ ]]~ @) T, = 32-11 - [21]N elf? Sedle reading = 32+18-11 = [23]^ (g) FB = Pug = [22]~ (h) scale reading = 32+18+22= [28]N. 18- 3IN 2+1 8-22