Two blocks with masses m1 = 3.00 kg and m2 = 4.00 kg are connected by a light piece of red string. The red string is draped over a frictionless pulley. Block mị is positioned on a rough ramp that makes an angle of 37.0° with the horizontal, while block m2 is positioned on a rough horizontal tabletop to the left of the ramp. The coefficient of kinetic friction between m, and the ramp 0.250, and the coefficient of kinetic friction between m2 and the ramp is µ2= 0.100. is Meanwhile, a third block of mass m3= 0.0250 kg is connected to the other side of mass m2 with a piece of blue string. The blue string is draped over a second frictionless pulley so that mass m3 hangs vertically over the left side of the horizontal tabletop. When the system is released from rest, block mị travels down the ramp with an unknown acceleration a. Assume the strings connecting the blocks remain taut so that the whole system travels with the same acceleration.

Two blocks with masses m1 = 3.00 kg and m2 = 4.00 kg are connected by a light piece of red string. The red string is draped over a frictionless pulley. Block mị is positioned on a rough ramp that makes an angle of 37.0° with the horizontal, while block m2 is positioned on a rough horizontal tabletop to the left of the ramp. The coefficient of kinetic friction between m, and the ramp 0.250, and the coefficient of kinetic friction between m2 and the ramp is µ2= 0.100. is Meanwhile, a third block of mass m3= 0.0250 kg is connected to the other side of mass m2 with a piece of blue string. The blue string is draped over a second frictionless pulley so that mass m3 hangs vertically over the left side of the horizontal tabletop. When the system is released from rest, block mị travels down the ramp with an unknown acceleration a. Assume the strings connecting the blocks remain taut so that the whole system travels with the same acceleration.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 47P: (a) What is the maximum frictional force in the knee joint of a person who supports 66.0 kg of her...

See similar textbooks

Similar questions

The x and y coordinates of a 4.00-kg particle moving in the xy plane under the influence of a net force F are given by x = t4 6t and y = 4t2 + 1, with x and y in meters and t in seconds. What is the magnitude of the force F at t = 4.00 s?
(a) What is the maximum frictional force in the knee joint of a person who supports 66.0 kg of her mass on that knee? (b) During strenuous exercise, it is possible to exert forces to the joints that are easily 10 times greater than the weight being supported. What is the maximum force of friction under such conditions? The frictional forces in joints are relatively small in all circumstances except when the joints deteriorate, such as from injury or arthritis. Increased frictional forces can cause further damage and pam.
World-class sprinters can accelerate out of the starting blocks with an acceleration that is nearly horizontal and has magnitude 15m/s^2 a) How much horizontal force F must a sprinter of mass 64 kg exert on the starting blocks to produce this acceleration?
an A clarinetist, setting out for a performance, grabs his 3.390 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air. At one moment, the clarinetist is applying an upward force of 41.57N Use g=9.810(m)/(s^(2)) for the acceleration due to gravity. At this moment, find the vertical component of the case's acceleration a_(y) find a_(y)=________(m)/(s^(2))
The masses of the red and green boxes are 8.92 kg and 2.5 kg, respectively. If the red box is pushed by 17.6 N force, the magnitude contact force (N) the system is
Two teams of nine members each engage in a tug of war.Each of the first team’s members has an average mass of 68kg and exerts an average force of 1350 N horizontally. Eachof the second team’s members has an average mass of 73 kgand exerts an average force of 1365 N horizontally. (a) Whatis magnitude of the acceleration of the two teams? (b) What isthe tension in the section of rope between the teams?
In Fig, a block of mass m =5.00 kg is pulled along a horizontal frictionless floor by a cord that exerts a force of magnitude F =12.0 N at an angle θ=25deg. (a) What is the magnitude of the block’s acceleration? (b) The force magnitude F is slowly increased. What is its value just before the block is lifted (completely) off the floor? (c) What is the magnitude of the block’s acceleration just before it is lifted (completely) off the floor?
A body of mass m moves in a horizontal direction such that at time t its position is given by xt) = a cos(wt + ) where a, w, and are constants. What is the time dependent force acting on the body?
The net external force on the 24 kg mower is stated to be 51N. a. If the force of friction opposing the motion is 24N, what force F in newtons is the person exerting on the mower? b. Suppose the mower is moving at 1.5 m/s when the force F is removed. How far will the mower go before stopping?
a block of mass m 5.00 kg ispulled along a horizontal frictionless floor by a cordthat exerts a force of magnitude F = 12.0 N at anangle u = 25.0. (a) What is the magnitude of theblock’s acceleration? (b) The force magnitude F isslowly increased. What is its value just before theblock is lifted (completely) off the floor? (c) What isthe magnitude of the block’s acceleration just before it is lifted(completely) off the floor?
s The giant Pacific octopus (Enteroctopus dofleini) has a typical mass of 15 kg and can propel itself bymeans of a water jet when frightened. (a) If it expels water at amass rate of 2.4 kg>s and with a speed of 27 m>s, what thrust canit generate? (b) If the seawater exerts a resistive force of 18 N onthe octopus, what acceleration can it achieve? (c) If the octopusmaintains its jet propulsion for 3.0 s, what maximum velocitycan it attain?
(a) What is the minimum force of friction required to hold the system of Figure P4.74in equilibrium? (b) What coefficient of static friction between the 100.-N block and thetable ensures equilibrium? (c) If the coefficient of kinetic friction between the 100.-Nblock and the table is 0.250, what hanging weight should replace the 50.0-N weight toallow the system to move at a constant speed once it is set in motion?