37. Which of the ollowing quantities measur es the ability of a force to rotate

Question

37. Which of the ollowing quantities measur es the ability of a force to rotate or accelerate an( point) object around an axis? axis of rotation O lever arm tangential force Otorque 38. A heavy bank-vault door is opened by the application of 3.0x 102 N directed perpendicular to point the plane of the door at a distance of 0.80 m from the hinges. What is the torque? 0120 N-m 240 N·m 300 N·m 360 N·m 39. Which of the following is not an example of uniform circular motion? (l point) 0 a car moving around a circular racetrack with constant speed O a person swinging a ball attached to a string around their head at a constant speed a record player rotating a record at a constant speed O an airplane flying roundtrip at a constant speed 2 3 4 5 6 8 9

Explanation / Answer

37) torque

38) Torque = force *perpendicular distance

T = Fr = 300*0.8 = 240 N

39) a car moving around a circle with a constant speed

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