A 2.50-kg block on a level tabletop is attached to a vertically-hanging 1.50-kg block via a light, uniform cable that passes over a light, frictionless pulley that is attached to the end of the table. What minimum value for the coefficient of static friction between the 2.50-kg block and the table is required to keep the entire system at rest?     a. 0.700   b. 0.400   c. 0.600   d. 0.800   e. 0.500

A block is sliding down a ramp at a constant velocity. Which one of the following statements is true? a. The block is not in equilibrium because the net torque on the block is not equal to zero N.m b. The block is in equilibrium, but it is not in static equilibrium. c. The block is not in equilibrium because the net forces on the block are not equal to zero newtons. d. The block is in static equilibrium. e. The block is not in equilibrium because the linear momentum of the block is not equal to zero kg.m/s.

QUESTION 11 A uniform, 5.0-m-long, 30-kg plank is suspended from a high ceiling by two, uniform, massless, vertical cables. A 70-kg painter is standing 1.5 m from the cable at the right end of the plank. What is the force of the cable on the plank at the right end? 1.5 m 5.0 m а. 117 N b. 225 N С. 453 N d. 628 N е. 784 N

Rank the torque about your shoulder due to the weight. No bending at the elbow. The length of the string holding the weight is the same in all cases except D. A. C>D>A> B B. AC=D>B C. D=A> C > B D. C> A= B = D E. D> B>C> A A W 2W B W D W

5. The uniform 15 kg square plate is lying motionless on the smooth horizontal surface when two forces are applied as shown. Determine the initial acceleration of point A for b = 0.8 m and P= 60 N. ä, (in terms of i and j)- B. 4P

A 4-m long, 150-kg steel beam is attached to a wall with one end connected to a hinge that allows the beam to rotate up and down. The other end of the beam is held in a horizontal position with a cable that makes a 27° angle with the beam and is attached to the wall (see (Figure 1)). a.What is the tension force that keeps this beam in static equilibrium? b.  A mass of 75 kg is hung from the beam 3 meters away from the hinge (see (Figure 2)). Now what is the tension force that keeps this beam in static equilibrium? c.What is the vertical component of the force that the hinge exerts on the beam?

Equilibrium is when net force acts on an object is zero. Following are the examples of equilibrium. Choose all that apply.   A.  A car is going around a curve with 15mph.   B. A car going on cruise control on highway.   C. A 10 N of force acts on a box on right and a 10 N of force acts on the same box on left.   D. A computer at rest on the table.

ebAssign 110 N 40 ASK YOUR TEACHER 3. DETAILS SERCP11 4.7.P.065.MI. Objects with masses m, = 15.0 kg and m, = 8.0 kg are connected by a light string that passes over a frictionless pulley as in the figure below. If, when the system starts from rest, m, falls 1.00 m in 1.78 s, determine the coefficient of kinetic friction between m, and the table. 4. DETAILS SERCP11 5.2.OP.015. ASK YOUR TEACHER A 7.80 g bullet is initially moving at 620 m/s just before it penetrates a block of wood to a depth of 5.80 cm. (a) What is the magnitude of the average frictional force (in N) that is exerted on the bullet while it is moving through the block of wood? Use work and energy considerations to obtain your answer. (b) Assuming the frictional force is constant, how much time (in s) elapses between the moment the bullet enters the block of wood and the moment it stops moving?

Two identical strings making an angle of 0 = 30.3° with respect to the vertical support a block of mass m = 10.2 kg (see the figure below). What is the tension in each of the strings? (Enter your answer in N.) %3D HINT ele 77m

A mass in translational equilibrium experiences 3 forces. Select the case that most fully and accurately describes the scenario. I. The magnitudes of the 3 forces are equivalent. II. The angles between the 3 vectors are 120 degrees. III. The vector sum of the 3 forces equals 0N. IV. All 3 forces are parallel.   A. III only   B. I only   C. I and III only   D. IV only   E. II and III only