96.30: An 800-kg elevator accelerates downward at l n (nj)m zva5w2;2k,urwfr.k$ 2.0\;m/s^{2}$ . The force exerted by the cable on the elevator is:

  98.29: A 50-kg student stands o ox4ci npnca584;4sfhy7 l y*tn a scale in an elevator. At the instant the elevator has a downward accelerp47o;ccl*4f4s h t8 anyynix5ation of $1.0\; m/s^{2}$ and an upward velocity of 3.0 m/s, the scale reads approximately

  07.13: Astudent weighing 500 N sz pd/o yp;/4cl.oyidhe0r) .ngec2 5d tands on a bathroom scale in the school’s elevator. When the scale reads 520 o2 d4ypre/)eyloc;c0.p /ih z .ng5d dN, the elevator must be

  00.12: Astronauts in an orbiting space shuttle are “weightless” becausa a0hpw+x7v,t e

  06.16: A scientist in the Inli+tbbn+too ( s (.q4 trqj8.mternational Space Station experiences "weightlessness" berbj.bto i4qm8sn+ol. q ( t+t(cause

  11.10: A string of negligible mass connects5gf5g:o0 wxm(dd,ug+c 3c neq an object of mass M=10 kg to the ceiling of an elevator. The elevator experiences a constant downward speed of 3.0 m/s. Let Trepresent the magnitude of the force on the mass M by the string (tension), G represent the magnitude of the gravitational force by the Earth acting on the mass M hanging in the elevator(ude:f+55gxcg gn c,d0mw o3q , and F represent the magnitude of the net force acting on the mass M. Which one of the following choices describes the relationships between these forces?

  12.10: A string of negligible mass cofgk (w: 4n-rwfnnects an object of mass M=10 kg to the ceiling of an elevator. The elevator experiences a constant dog:w(f r-nkfw4wnward acceleration of magnitude $6.0\; m/s^{2}$ . Let Trepresent the magnitude of the force by the string (tension) acting on the mass M, let G represent the magnitude of the gravitational force by the Earth acting on the mass M, and let F represent the magnitude of the net force acting on the mass M. Which one of the following choices describes the relationships between these forces?

  03.06: A 2 kg mass and a 4 kg mass on ):zgu89d s:dw.tsf gtaypx 02a horizontal frictionless surface are connected by a massless string A. They are pulled horizontally across the surface by a second stri:fd z:u2a9d x.gys s08tgwt )png B with a constant acceleration of $12\; m/s^{2}$ .
What is the magnitude of the force of string B on the 2 kg mass?

  03.07: A 2 kg mass and a 4 kg mass on a horizontal iw+k -opjly3vk;s 3; ztyop -9frictionless surface are connected by a massless swjs3 okpp3y;vzi+ -o-l9ky; ttring A. They are pulled horizontally across the surface by a second string B with a constant acceleration of $12\; m/s^{2}$ .
What is the magnitude of the force of string A on the 4 kg mass?

  03.08: A 2 kg mass and a 4 kg mass on a horfyrw9n:i6ufca 5(q d2izontal frictionless surface are connected by a may(5d ufi6:cr2nwa f9 qssless string A. They are pulled horizontally across the surface by a second string B with a constant acceleration of $12\; m/s^{2}$ .
What is the magnitude of the net force on the 2 kg mass?

  96.33 : Two blocks X andY are in contact on a -t /(zee4t uhqhorizontal frictionless surface. A 36 N constant force is applied to X as shown to the right. The force exertq e4e(-/u tzhted by X onY is:

  97.31: Two blocks of mass 1.0 kg and 3.n0/ b a)7hwoba0 kg are connected by a string which has a tension of 2.0 N. A force F acts in the direction shown to the right. Assuming friction is negligible, what is the /hbw07boaan)value
ofF?

  99.12: Two boxes are accelerated to the right on a frictionless horizontal i2gk 4qwy b*uxo.ud 28surface as shown. The larger box has a mass of 9 kilograms and the smaller box has a mass of 3 kilograms. If a 24 newton horizontal force pulls on the larger box, with what force does the larg ukdw42.q2gx8*ui yober box pull on the smaller box?

  17.15 : Two blocks X andY are in contact ocox,1wp kd5 s1kea88xd mez odgr 80:)n a frictionless horizontal surface. A constant 35 N force 8 z5,xkxko g)se1dw8roe1 p0c:8 damdis applied to the right onto block Y. What is the magnitude of the force that block X exerts onto blockY?

  94.25: One end of a massless rope is attached to a mass m;twg(va18 uxx ( the other end is attach(1agxwt v8ux (ed to a mass of 1.00 kg. The rope is hung over a massless frictionless pulley as shown in the accompanying figure. Mass m accelerates downward at $5.0\;m/s^{2}$. What is m?

  97.30 : A string with masses of 1.5 kg and 3.0 kg on its ends j-f/j5g/tkh m is hung over a frictionless, massless pulley as shown to the right. What is the approximate magnitude of jtgmjhf5 //-k the acceleration of the masses?

  02.36: Two masses, m1 and m2, are connected by a cord and arranged 7u59crc4hkm w as shown in the diagram with m1 sliding along on a frictionless surface and m2 hanging from a light frictionless pulley. What would be the mass of the falling mass, m2u47cck r9m w5h, if both the sliding mass, m1, and the tension, T, in the cord were known?

  02.42: A small box of mass m isplaced on tob, s d t/ qs0l;:*8s7xfmzhvvhk/oogfav35:kp of a larger box of mass 2m as shown in the diagram at right. When a force F is applied to the large box, both boxes accelerate to the right with the same acceleration. The coefficient of friction between all surfaces is μ , what would be the force accelerating the smaller ma//ohmvf bksv:07s3lts5 ;q8xvz gd,h*f k :ao ss?

  17.25: A box slides with uniform acceleration up an incline. The box ha:d8cnl rbdqv +4,un:z s an initial speed of 9.0 m/s and rises vertically 2.60 before coming to rest. If the angle of thn:rzvu,n q:d+b 84c dle incline is$30^{\circ}$, what is the coefficient of kinetic friction between the box and the incline?

  05.44: A box of mass mis initially at rest on a horizontal surface. A constanz ) 4t*mor8oq,6i hyafsirn-3s ,lkm6t horizontal force of mg/2 is applied to the box, directed to the right. The coefficient of friction of the surfkosy*8 ir -ztsaom46,l nmr )q3ih, 6face changes with the distance pushed as $μ = μ_0x$ where x is the distance from the initial location. For what distance is the box pushed until it returns to rest?

  15.24: A mass on a frictionless incline jdgac gn(83 ;kl;)y)6bptlqd:w(jn khas a gravitational force,a normal force from the incline, and a force applied by a person that (d:j dkl6n); qlt)apggy83;bjn(w ckall are equal in magnitude. The mass remains at rest and the incline makes an angle θ counterclockwise from the horizontal. Which one of the following choices best describes the orientation of the applied force by the person? The +x-axis is directed upward, parallel to the incline’s surface as shown in the figure.