Online Homework 3 Solutions

Online Homework 3 Solutions - Falling Flowerpot A 5.4 kg...

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 12
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Falling Flowerpot A 5.4 kg flowerpot drops from a tall building. The initial speed of the pot is zero, and you may neglect air resistance. a} What is the magnitude of the force acting on the pot while it is in the air LE 3 after it begins to fall? h) After the pet has Fallen 35 In, what is its speed? e} After the pet has fallen 35 m, it enters a viscous liquid, which brings it to rest over a distance of 1.5 m. Assuming constant deceieration over this distance, what is the magnitude of this deceleration“? d} What is the Force exerted on the liquid by the pot'IJl ma. ($.Q—Wj)(cl.fl ( T114119 ch"! incla‘lfljwtlfims‘t % ‘hwfl Emu; 175‘!“ o: sit-M to The ‘Uf\ L15 [ij :Ja-wl m b) #163 : 53—3521. ‘le ‘" -— 1(9- 3 W/i‘YHaD-Srhj ; "- 21E: Era-{L a) 62:- x511 7. Zaail' u”?! 6? O _ (96.1?“ ’ZGW’ 205m) —- .— it ll i {as “ft-J J} '9 {J Farce-s The: forms FE, F; and F3 act on an object as sham in the fraa—bady diagram above. F. has a magnimdc of E- N while F1 and F3 each have a magnide of3 N. All forces make angles affifl“ with the a-axis as show. Whal is the: magnitude 0f Fm. the net force acting an the object? Scale an Elevator II A 55-kg girl weighs herself by standing en a scale in an elevator. What dees the scale read when: a] the elevator is descending at a constant rate of 11 mfs? h] the elevator is accelerating dewnward at 1.3 lute}? c] the elevator is accelerating upward at 1.3 natal? d] the elevator is ascending at 12 mix but its speed is decreasing by 3 ms in each second? mh-wmm« Laden“ m was m= N 5.. Mwawm swig (semis U’ “'0 a) 9:0 mémf‘J-‘ifl‘ Three Bleeks Blocks of mass 3. ti. and 9 kg are lined up them left to: right in that order an a fi‘ietienless surface are each black is teuehing the next one. A rightward~peinting three of magnitude 1? N is applied In the tell-meet block. a) What is the magnitude of the three that the middle hleek exerts an the righh‘nest ene‘? 11} What is the magnitude er the three that the Ieflsnest block exerts en the middle one? 1:) Suppose new that the left-right order of the blocks is reversed. New find the magnitude of the three that the lefimest tiles}: exerts an the middle one? :F'Eu mm mm sew rev-‘1 Marmot) .Eo/u. dehme The WE‘LLW“ ’F :(m.+m1»fle)fla Mass on two strings A block of mass M = 15 kg is suspended at rost by two sln'ogs attaoliod to walls. as shown in tho figuro. T11: loft string is horizontal and the right string mskos an anglo E = 51]“ with the horizontal. What is the tonsion in the loft string? [Assume the ring when: the strings some togethor is massloss}. Pendulum in Car A as kg sphere hangs on a string fiorn the ceiling of an automobile. The car has a constant horizontal acceleration and the string is displaced an angle '3 = 65.2“ from the vertical. To a person sitting inside the car, it appears that the sphere is motionless {the angle between the sphere and the vertical is constant}. What is the magnitude of the acceleration of the car? la, in Mflwfi semicl hilt-U 2 fiéflflfli x: TEMG -‘ ““i {on Tmfi — m3 : O (3310» Ji. ,9 . 'FT 3 ———t'-=~ 43:19 2. m ...
View Full Document

Page1 / 12

Online Homework 3 Solutions - Falling Flowerpot A 5.4 kg...

This preview shows document pages 1 - 12. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online