Physics, 03.11.2019 02:31 WorkingButNotReally

Two blocks of masses m1 and m2 are placed on a table in contact with each other as shown in the figure below. the coefficient of kinetic friction between the block of mass m1 and the table is μ1, and that between the block of mass m2 and the table is μ2. a horizontal force of magnitude f is applied to the block of mass m1. we wish to find p, the magnitude of the contact force between the blocks.
what is the magnitude p of the contact force between the blocks in terms of the same quantities?
write newton's second law in the x direction for each block.

Answers: 2

Show answers

Answers

Answer from: yddlex

Two blocks of masses m1 and m2 are placed on a table in contact with each other as shown in the figure below. The coefficient of kinetic friction between the block of mass m1 and the table is μ1, and that between the block of mass m2 and the table is μ2. A horizontal force of magnitude F is applied to the block of mass m1. We wish to find P, the magnitude of the contact force between the blocks.
(b) What is the net force on the system of two blocks? (Use any variable or symbol stated above along with the following as necessary: F, P, and g.)
Fnet = _F - (μ1*m1+ μ2*m2)*g_ N
(c) What is the net force acting on m1? (Use any variable or symbol stated above along with the following as necessary: F, P, and g.) Fnet,1= _F - (μ1*m1)*g - P_ N
(d) What is the net force acting on m2? (Use any variable or symbol stated above along with the following as necessary: F, P, and g.) Fnet,1=__F - (μ2*m2)*g + P_ N (1)

(f) Solve the two equations in two unknowns for the acceleration a of the blocks in terms of the masses, the applied force F, the coefficients of friction, and g. (Use any variable or symbol stated above along with the following as necessary: F.) a=_[{F/(m1+m2)} - {(μ1*m1+ μ2*m2)/(m1+m2)}*g]_ m/s^2 (2)
(g) Find the magnitude P of the contact force between the blocks in terms of the same quantities. From (1) we get P=_Fnet,1 - F + (μ2*m2)*g _ N (3) From (2), we get Fnet,1 = m1*[{F/(m1+m2)} - {(μ1*m1+ μ2*m2)/(m1+m2)}*g] (4) Substituting (4) in (3) we get P = _m1*[{F/(m1+m2)} - {(μ1*m1+ μ2*m2)/(m1+m2)}*g] - F+(μ2*m2)*g_ or P = _[-{m2/(m1+m2)}F+(μ2*m2^2 - μ1*m1^2)*g]_ N

Answer from: Quest

the answer is a. hope this .

Answer from: Quest

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

Another question on Physics

Physics, 22.06.2019 00:00

1134567 a jet with mass m = 1.1 ă— 105 kg jet accelerates down the runway for takeoff at 2 m/s2. 1) what is the net horizontal force on the airplane as it accelerates for takeoff? 2.2*10^5 n your submissions: 2.2*10^5 computed value: 220000submitted: saturday, january 26 at 2: 41 pm feedback: correct! 2) what is the net vertical force on the airplane as it accelerates for takeoff? 0 n your submissions: 0 computed value: 0submitted: saturday, january 26 at 2: 41 pm feedback: correct! 3) once off the ground, the plane climbs upward for 20 seconds. during this time, the vertical speed increases from zero to 21 m/s, while the horizontal speed increases from 80 m/s to 95 m/s. what is the net horizontal force on the airplane as it climbs upward? n 4) what is the net vertical force on the airplane as it climbs upward? n 5) after reaching cruising altitude, the plane levels off, keeping the horizontal speed constant, but smoothly reducing the vertical speed to zero, in 13 seconds. what is the net horizontal force on the airplane as it levels off? n 6) what is the net vertical force on the airplane as it levels off?

Answers: 1

Answer

Physics, 22.06.2019 12:40

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)

Answers: 2

Answer

Physics, 22.06.2019 12:50

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.

Answers: 2

Answer

Physics, 22.06.2019 14:30

What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?

Answers: 1

Answer

You know the right answer?

Two blocks of masses m1 and m2 are placed on a table in contact with each other as shown in the figu...

Questions