Question 1: A uniform 5.0-m beam that weighs 360 N is suspended by vertical cables at either end. A 820-N man stands 1.4 m from the right end of the beam. By summing the torques about an axis passing through the right end of the beam, determine the tension in the cable holding the left end of the beam. ___ N.

Question 2: Two identical long, thin rods are spinning: rod 1 spins about an axis passing through its center, and rod 2 spins about an axis passing through one end. Both rods have thesame amount of rotational kinetic energy. Which statement is true about the angular speeds₁ and₂ of the rods?

a) W1 < w2

b) W1 = w2

C) W1 > w2

D) More info is needed

question 3. A boy ties a rock to a string and swings it in a vertical circle at a constant speed. The tension in the string has a magnitudeT, the rock's weight has a magnitudeW, and the net force acting on the rock has a magnitudeF_net. Which of these force magnitudes remainconstant as the rock follows its circular path?

A) Fnet and T only

B) W and F net only

C) T, F net, and W

D) T and W only

Question 4 You can hold a meter stick in one hand, either by the center or by one end, and twist it back and forth.

True or false: the stick's moment of inertia about your hand is greater when you hold it by the center than when you hold it by one end