Could someone just verify that my answers are correct and if not please explain
ID: 2041373 • Letter: C
Question
Could someone just verify that my answers are correct and if not please explain the correct answer. Thank you!
Questions 1-4 refer to the situation illustrated in the figure below. Two masses are attached to a weightless rod with a supporting pivot (or fulcrum) positioned somewhere on the rod. Assume each square is 1.0 cm in length. Assume that a +) force is one that is directed upwards. A B C D E 3.0 kg 1.0 kg 1. Where should the supporting pivot be located on the rod to produce the largest(+)net torque? Hint If there is a net (+) torque, the net torque is not equal to zero. a. A b. B ?.? d, D 2. Where should the supporting pivot be located on the rod to produce the largest ) net torque? Hint: If there is a net ()torque, the net torque is not equal to zero. b. B c. C d. D e. E 3. Where should the supporting pivot be located on the rod to produce no rotation? a. A c. C d. D e. E for the s of forces, the supporting pivot (or fulcrum) must 4. In ordér provide a force equal to: a. +4.0 kg b.-2.0kg c.-39.2 N d.-19.6 N e. +19.6 N +39.2 N 5. A 5.0 kg block is ceiling. It stretches 0.3 m relative to its original length. A 3.0 kg block is placed at end of spring A that is also suspended vertically and supported by the oeiling. It stretches 0.5 m relative to its original length. The two spring/mass systems are then vertically displaced and set in motion. Which of the following statements is true? at the end of spring B that is suspended vertically and supported by the The spring constants for the two springs are equal. Spring A is more rigid than Spring B. Spring B is stiffer than Spring A Neither spring has a spring constant. e. The net force acting on the spring/block system is the weight of the spring/blockExplanation / Answer
1] Correct because counterclockwise taken as positive
2] correct
3] correct
4] correct
5] wrong, c is correct, kB = mg/x = 5*9.8/0.3 = 163 N/m and kA = 3*9.8/0.5 = 58.8 N/m