(3.) In the figure shown below, the 20 kg block is acted upon by friction (assume µk = 0.39) and is connected by cords that do not break or stretch to the freely-hanging 10 kg and 30 kg blocks. (a) Draw a freebody diagram for each object, taking the + x-axis in the direction of motion in each case. and let TL and TR be the tensions in the left and right cords, as shown, respectively, in the figure. TL f20t TR 30 10 (b) Solve for the friction force fy on the 20 kg block. TC) Apply Newton's 2nd law to all three objects (freebodies), and write the three appropriate equations. (d) Solve these equations simultaneously for the tensions (TL and TR) in the cords and the acceleration (a) of the whole system.

(3.) In the figure shown below, the 20 kg block is acted upon by friction (assume µk = 0.39) and is connected by cords that do not break or stretch to the freely-hanging 10 kg and 30 kg blocks. (a) Draw a freebody diagram for each object, taking the + x-axis in the direction of motion in each case. and let TL and TR be the tensions in the left and right cords, as shown, respectively, in the figure. TL f20t TR 30 10 (b) Solve for the friction force fy on the 20 kg block. TC) Apply Newton's 2nd law to all three objects (freebodies), and write the three appropriate equations. (d) Solve these equations simultaneously for the tensions (TL and TR) in the cords and the acceleration (a) of the whole system.

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 53P: Show that the acceleration of any object down an incline where friction behaves simply (that Is,...

See similar textbooks

Similar questions

If a block of mass m lies on a wedge of mass M, here all surfaces are smooth, and the block slips on the wedge, will the wedge have any acceleration? If yes, explain why and of what magnitude?
A barge is pulled by two tugboats. If the resultant force exerted by the tugboats is 5kN force directed along the x-axis of the barge, determine the tensions in each of the rope knowing that a=45 degrees.
A woman pulls a sled which, together with its load, has a mass of m kg. Let g be the acceleration due to gravity. If her arm makes an angle of theta with her body (assumed vertical) and the coefficient of friction (a positive constant) is mu, the least force, F, she must exert to move the sled is given by
A rod of length 60 cm and mass 1.8 kg is suspended by two strings which are 40 cm long, one at each end of the rod. The string on side B is cut. Find the magnitude of the initial acceleration of end B. The string on side B is retied and now has only half the length of the string on side A.
The three masses shown in the figure are in equilibrium and the inclined plane is frictionless.If θ = 30.7°, m2 = 2.00 kg, and m3 = 4.24 kg, determine the mass m1 and the magnitude of the tension T in the string connecting m2 and m3.
In the figure provided, a crate of mass m sits at rest on a 20° ramp and is connected to another crate of mass 1.84 kg by a rope and pulley. If the coefficient of friction is μk = 0.510 and μs = 0.790 with the surface, what acceleration will the mass m have if it is slightly nudged and begins to be pulled up the ramp? Assume the rope and pulley are massless.
A block is pushed onto a frictionless surface of inclination 30 ° by applying a force as shown in the figure. If F = 25 N and M = 3.0 kg, what is the magnitude of the resulting acceleration of the block?
What is the magnitude of the resultant force?
The weightless block is fixed at the top of the inclined plane, which makes an angle of 300 with the horizon. Weights 1 to 2 of the same mass of 1 kg connected by a thread and thrown over the block. Find the acceleration with which weights and the force of tension of the thread move. The friction in the block is neglected, and the coefficient of friction on the inclined plane is 0.1.
What is the tension acting vertically in an a chilled of a heel, for a person standing still on horizontal ground on the ball of one foot and lifting the heel just off the ground? Take the weight of the person to be 600 N, the displacement
Block 1, of mass m1 = 0.700 kg , is connected over an ideal (massless and frictionless) pulley to block 2, of mass m2, as shown. For an angle of θ = 30.0 ∘ and a coefficient of kinetic friction between block 2 and the plane of μ = 0.200, an acceleration of magnitude a = 0.550 m/s2 is observed for block 2. Find the mass of block 2, m2?
While the aircraft weighs 5000 kg, accelerates and moves, leaving a load of 150 kg, instantaneous speed, altitude, net engine thrust, wind speed are given. Calculating the distance with the aircraft while the load falls to the ground in a negligible condition of air friction.