96.30: An 800-kg elevator accelerate4.)c fmxy5/ h-ekny8a 4mpmvgm9rq)ms downward at$ 2.0\;m/s^{2}$ . The force exerted by the cable on the elevator is:

  98.29: A 50-kg student stands on a scale in an elevator. At the instant tho(-: q,pqbt xe y)pilv;aji60 e elevator hasi0iep jaq) ,x vtb;-6: (yploq a downward acceleration 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 stands on a bathroom scale ig0kvxh,7vc)hbokx ; 4n the school’s elevator. When the scale reads 520 N, the elevator 0 ob xhhxv4,c7k);vkgmust be

  00.12: Astronauts in an orbiting space shuttle are “weighepmn :fr+)b r4tless” because

  06.16: A scientist in the International Space Station experiences "weigo0fr2j9ya+klg)yy8 k 2g / emh:.xjsa htlessnesk92s0g: x8ra) ./yy2jjfklmogahey +s" because

  11.10: A string of negligible mass connects an object of masssx+t :z xy0mk)u ti)l e 1:)dx:rnje7i M=10 kg to the ceiling of an elevator. The elevator experiences a constant downward sp x erx:j7mliz+ts::)y)0ntdkuixe1)eed 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, 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 mas,g /qew 7bgnhefi1:g5 s connects an object of mass M=10 kg to the ceiling of an elevator. The elevator experiences a cogh,g: e7q1fi5wgebn/ nstant downward 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 a horizontal friysgwznzb+lncp) 2d5( axx3 * 8ctionless surface are connected by a massless string A. They are pulled horizontally across the surface by a second string B with a constant acceleration of (lxdy8scn z w+3xp5 zan)2g*b$12\; m/s^{2}$ .
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 fri+w0kntqxn+/ w ctionless surface are connected by a massless string A. They are pulled horizotn0wwnx/ q ++kntally 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 horizontal frictionless surface are conn8m fxtod- kjiooqk84g9 gy.:3od2u; hected by a massless string A. They are pulled horizontally across the surface by aufdo2g9o8t o j h.ykoi q48dx:3- ;gkm 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 conqv;6ehoh: /nltact on a horizontal frictionless surface. A 36 N constant force is applied to X as shown to the right. The f v;hl/o6heqn:orce exerted by X onY is:

  97.31: Two blocks of m zc2irz7q7xtlo3 4* rmass 1.0 kg and 3.0 kg are connected by a string which has a tension of 2.0 N. A force F acts in the direction shown to 4zz3 ct r*ixrlq7o2m7the right. Assuming friction is negligible, what is the value
ofF?

  99.12: Two boxes are accelerated to the right on a frictionless horizontjh 2cz9o.x dcd-/zll)al surface as shown. The larger box has a mass of 9 kilograms and the smaller box has a mass of 3 kilograms. If a 2z.9l/o2czjc )-ld h dx4 newton horizontal force pulls on the larger box, with what force does the larger box pull on the smaller box?

  17.15 : Two blocks X andY are in contact on a frictionless horizontal sur30qaho toqb4d ((q9rq face. A constant 35 N force is applied to the right onto block Y. What is the magnitude of the force that blo3qho9rd(ot( q0 qaqb4 ck X exerts onto blockY?

  94.25: One end of a massless rope is attached to a mass m; the other envqdhg7z4*dx egyo9)k: d 8hroz +sc2*d is attached to a mass of 1.00 kg. The rope is hung over o s:+od2vh9 z xz**r7ekhc)8 g4ddyq ga 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 e+(uz xk))cr hy:a(hwlnds is hung over a frictionless, massless pulley as shown to the right. What is the approximate magnitude of the acceleration or: ywc+ ()hxla( z)hkuf the masses?

  02.36: Two masses, m1 and m2, are connected by a cord and arr2,26x qesj lxaanged 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, m2, if both the sliding mass, m1, and the tension, T, in the cord were known lxsj aq262ex,?

  02.42: A small box of mass m isplaced on ,p90gim8sdkj top 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 coeffici09pg kmj,s di8ent of friction between all surfaces is μ , what would be the force accelerating the smaller mass?

  17.25: A box slides with uniform ac14 p9tsffu m+vceleration up an incline. The box has an initial speed of 9.0 m/s and rises fp4f9v m1ut+s vertically 2.60 before coming to rest. If the angle of the 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*2u2voc 5n3q:x6 swx+o opuxi horizontal surface. A constant horizontal force of mg/2 is applied to the box, directed to the right. The coefficio*xu22p vw5i 3oxs+ucox :6qnent of friction of the surface 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 has a gravitational force zy8 0fhyo()ap,a normal force from the incline, and a force applied by a person that all are equal in magnitudeh80z fo )pay(y. 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.