subject
Physics, 10.12.2019 00:31 iwantcandy2002

Avery light 1.0-m-long rod is allowed to rotate about a point 0.25 m from its left side. using unit-vector notation and cross product, find the torque that results about this point from the following forces (all of which are in the xy plane): (a) f1 = 2.0 n acting downward on the left end of the rod, (b) f2 = 2.0 n acting upward on the center of the rod at an angle θ2 = 60º, and (c) f3 = 2.0 n acting downward on the right end of the rod at an angle θ3 = 45º. (d) if the rod has a uniform mass distribution and total mass of 1.0 kg, find the torque about this same point in the absence of any external forces. (e) finally, consider the net torque that results from the rod’s weight plus a force at the same location and in the same direction as f1. what magnitude should this force be in order to have a net torque of zero?

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 17:00
Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.
Answers: 1
question
Physics, 22.06.2019 05:30
Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine
Answers: 1
question
Physics, 22.06.2019 10:50
Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k
Answers: 1
question
Physics, 22.06.2019 23:30
You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?
Answers: 2
You know the right answer?
Avery light 1.0-m-long rod is allowed to rotate about a point 0.25 m from its left side. using unit-...
Questions
Questions on the website: 13722365