96.30: An 800-kg elevator accelerates down.(:.7hkn* gfg koeujt.kp2vl ward 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 elevatv8s8 i,mpz2+ ,vqckfzor. At the instant the elevator has a downward accelf s2+cv,pv8izmz ,qk8eration 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 in thv.j7yy5h9 ikx a6x0aie school’s elevator. Whxhky0jy 67vx a. 5aii9en the scale reads 520 N, the elevator must be

  00.12: Astronauts in an orbiting sph )3*xgja gcrg9ks5*aace shuttle are “weightless” because

  06.16: A scientist in the International Space Stationu5tupuqsz:: zigyz) fr/ 7-j * experiences "weightlessness" becauujg *rf yq:7:zt /zp isz)-u5use

  11.10: A string of negligible mass connects an kmx0i+ c9j9v lq-0kqjobject 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, and F represent the magnitude of the net force acting on the mass M. Which one of the following choices describes the relation q9klvjcxm 0j i9k0-q+ships between these forces?

  12.10: A string of negligible mass connects an obje.l,/.)h w rzhvpclsi+ct of mass M=10 kg to the ceiling of an elevator. The elevator experiences a constant downward)h /hz+l,pw ..rcsivl 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 fricti,f )jqq ftb+4u(o3 eqstu :it0onless surface are connected by a massless string A. They are pulled horizonta t,oi3f)( uqsf:equ4jq+b0tt lly 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 B on the 2 kg mass?

  03.07: A 2 kg mass and a 4 kg mass nrn6n5gpcx,, mds.p6y (v6e l on a horizontal frictionless surface are connected bn(.excg nr,6l d ,n6 p65yvspmy a massless 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 force of string A on the 4 kg mass?

  03.08: A 2 kg mass and a 4 kg mass on a horizontal frictionless suw3 qdnr-)mt u9m)imf 9rface are connected by a massless string A. They are pulled horizontally across the surface by a semq mu) )dm9rfi-3 tn9wcond 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 rz0 ;9oiy)hz(yzj1 7e7erp u handY are in contact on a horizontal frictionless surface. A 36 N constant force is applied to z7r;y7zpizr)hj (9ee0oh1yu X as shown to the right. The force exerted by X onY is:

  97.31: Two blocks of mass 1.057+5 dzpchdcn 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 the right.7pdhdnc5+zc5 Assuming friction is negligible, what is the value
ofF?

  99.12: Two boxes are accelerated to the right on a frictionless horizontal sur g)h3xk x)(mojface 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 larger box pull on thx) o3ghm)(kj xe smaller box?

  17.15 : Two blocks X andY are zm8)78wq 7swdne: 7wr6lf xfnin contact on a frictionless horizontal surface. A constant 35 N force is applied to the right onto block Y. What d6r8:xwzm fqeslnf87 7)wn 7wis the magnitude of the force that block X exerts onto blockY?

  94.25: One end of a massless rkz/rs b1:bg lc(ql; shi1gf /*ope is attached to a mass m; the other end is attached to a mass of 1.00 kg. lfb:c1ssl;bk1qi rz g*h/ /( gThe 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 maslm5 q.7tiyv/ j.ugb-pses of 1.5 kg and 3.0 kg on its ends is hung over a frictionless, massless pulley as shown to the right. What is thq/lpmu-btj7.. 5iyvg e approximate magnitude of the acceleration of the masses?

  02.36: Two masses, m1 and m2, are connpzw/ho+ 5 (skaected by a cord and arranged 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 mk pos/h5z(+a wass of the falling mass, m2, 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 top of a larger 1 xg-n)/wsc 1eedzbc9box of mass 2m as shown iwb9cce1sz g1x-e)d / nn 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 mass?

  17.25: A box slides with uniform acceleration up an inclit7g45a fy9 vqine. The box has an initial speed of 9.0 m/s and rises vertically 2.60 before coming to rest. If the angle of tqy9 f7vgti45a he 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(qflw o 1hac,3(c oi(0qzhp/q3td p+i constant horizontal force of mg/2 is appli(fitq d a q/,(1h 3qp03lpwocz+ico(hed to the box, directed to the right. The coefficient 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 fricw7-eag,;rlh6nz w3 yitionless incline has a gravitational force,a normal force from the incline, and a force applied by a person that all are equal in magnitude. The mass remains at rest and the incline makes an angle θ counterclockwise from the horizontal. Which one of the f,gyle3 -w;7 arz ihn6wollowing 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.