can you help with 9 sub parts a and b Constants:G= 6.7 x 10 1 N-m2/kg?9 = 9.8 m/s?Moment of Inertia:1=Emr I = MR Luak = Igitnder = MR Irat =Iyphere =MRInerepp = MR Idisk = IeyltnderML4. Question 4) asked you which rolls down an inclined plane faster, a hoop or a solid cylinder ifboth have the same mass and radius.b) Explain your reasoning here,5. Mars has a mass of 6.4 x 10 kg and a radius of 3.4 x 10° m.(a) What is the escape velocity of a projectile launched from the surface of Mars?(b) If a projectile is somehow launched from the surface of Mars with a speed of 5200 m/s,what will its speed be when it is very far (r 0) from Mars?6. A tennis ball (mass = 0.060 kg) is thrown horizontally from the top of a cliff, 10.0 m abovethe base of the cliff, with an initial speed of 10.0 m/s. The tennis ball reachos the ground ahorizontal distance of 19.0 m from where it was thrown. Its speed when it hits the ground is16.1 m/s.(a) How much work is done by the gravitational force as it goes from the point of release,r = (0, 10, 0) m, to the point where it hits the ground rf = (19.0, 0, 0) m?(b) What is AK, the change in kinetie energy of the tennis ball from whon it was thrownto when when it hits the ground?(c) How much work is done by air resistance (i.e. friction) as the tennis ball moves from itspoint of re- leasc to the point where it hits the ground?7. Two cars collide at an intersection. Just before the collision, car A (masstraveling north at 18 m/s and car B (masscars collide, they stick together.1000 kg) is= 1200 kg) is traveling east at 20 m/s. When the(a) What is the common speed (magnitude of the velocity) of the two stuck-together carsafter the collision? (b) Is this collision clastic or inolastic? Justify your answer quantitativoly, i.c. with a cal-culation. (If you didn't get an answer to part (a), use 12 m/s as the common speed ofthe stuck-together cars.)8. At a track and field meet a discus is thrown so that it spins at 5 revolutions per socond andmoves forward at 8.0 m/s. The discus can be considered a uniform cylinder with a mass of2.0 kg and radius of 0.11 m.(a) What is the angular speed of rotation of the discus, in rad/s?(b) What is tho rotational kinctie energy of the discus?(c) What is the total kinetic energy (rotational plus translational) of the discus?9. Imagine the force you exert on a door in Northside Hall is 50N, applied perpendicular to theplane of the door. The door is 1.0m wide.(a) Assuming that you pushed the door at its edge, what is the magnitude of the torque onthe swinging door (taking the hinge as the pivot point)?(b) Sketch the situation and indicate the directions of the force and the torque in yourdiagram.

Given information: The force applied on the door (F) = 50 N The width of the door (w) = 1.0 m Given…

Imagine the force you exert on a door in Northside Hall is 50N, applied perpendicular to the plane of the door. The door is 1.0m wide. (a) Assuming that you pushed the door at its edge, what is the magnitude of the torque on the swinging door (taking the hinge as the pivot point)? (b) Sketch the situation and indicate the directions of the force and the torque in your diagram.

Imagine the force you exert on a door in Northside Hall is 50N, applied perpendicular to the plane of the door. The door is 1.0m wide. (a) Assuming that you pushed the door at its edge, what is the magnitude of the torque on the swinging door (taking the hinge as the pivot point)? (b) Sketch the situation and indicate the directions of the force and the torque in your diagram.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 67P: In 2015, in Warsaw, Poland, Olivia Oliver of Nova Scotia broke the world record for being the...

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