Answered: Derive an expression for the maximum… | bartleby

Related questions

Question

Derive an expression for the maximum displacement possible for the block that will allow the block to still remain at rest. Express your answer in terms of MM, kk, μ_k, μ_s, and physical constants, as appropriate.

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

A particle, which remains at rest, is acted on by three forces, P, Q and R, and no others, as shown in the diagram attached. The force P acts horizontally to the left, the force Q acts vertically upwards and the force R acts downwards and to the right at an angle of 30◦ to the horizontal. The magnitude of P is 52 N. Let the magnitudes of Q and R in newtons be Q and R respectively. Take the Cartesian unit vectors i and j to be in the opposite direction to P and in the same direction as Q, respectively. a) Find expressions for the component forms of the three forces P, Q and R. b) Hence or otherwise find Q to two significant figures.
The Outlaw Run roller coaster in Branson, Missouri, features a track that is inclined at 80° below the horizontal and that spans a 49.4-m (162 ft) change in height. Y If the coefficient of friction for the roller coaster is the friction force on a 1800-kg coaster train? 0.30, what is the magnitude of Express your answer to two significant figures and include appropriate units. fx = 920 N Submit Part B. Correct Correct answer is shown. Your answer 919.88 N was either rounded differently or used a different number of significant figures than required for this part. Previous Answers How much work is done by friction during the time the coaster train travels along the incline? Express your answer to two significant figures and include appropriate units. W = -4.6x10¹ J Submit Previous Answers All attempts used; correct answer displayed Enter your answer with a different unit type. Review a list of acceptable units. Part C vju What is the speed of the coaster train at the bottom of the…
The maximum ('terminal') velocity, vt, that a falling object achieves depends on its mass m, the acceleration g due to gravity, the density p of the air, the object's frontal area A, and the object's drag coefficient C, which is a dimensionless quantity. The equation for the terminal velocity is: 2mg V = pCA Part (a): A skydiver jumps out of an airplane (regrettably) without his parachute. To slow his descent, he orients himself in a 'spread eagle' position, thereby increasing his area A to 0.70 m?. His drag coefficient Cis 1.0, which is a unitless quantity. Calculate his terminal velocity in m/s if his mass is 85 kg, the air density p is 1.21 kg/m3, and the constant g is 9.80 m/s?. Show your work, and ensure that each numeric value has the appropriate units. Your answer should be rounded to the appropriate number of significant digits. Part (b): Convert the answer from part (a) to miles per hour using the dimensional analysis method we reviewed in class. Show your work, and ensure…
A block is given an initial speed of 4.8 m/s up the 23.0° plane shown in (Figure 1). Ignore friction. Figure m ▼ Part A How far up the plane will it go? Express your answer to two significant figures and include the appropriate units. Imax Submit Part B - X0 = t = Submit ■ Value Provide Feedback μA Value Request Answer How much time elapses before it returns to its starting point? Express your answer to two significant figures and include the appropriate units. μĂ Request Answer Units Units www. ? ?
A lazy fish sees your fishing hook. The fish is initially located at position (3 m,-2 m) and drifts towards the fishing hook that is located at position (6 m, 0 m). The fish is a real lunker and has a mass of m = 9.1 kg. a) What is the displacement vector for the fish during this time interval? Express your answer using unit-vector notation (i.e. ->Ar = _î + __j) (6 m, 0 m) |(3 m, -2 m) Suppose the river exerted a constant force of F* = (28 N)î – (14 N)ĵ on the fish as it moved toward the hook. b) How much work was done on the fish by the river?
Please circle answers
a) Given the following ideal Atwood machine in an elevator accelerating down at ae = 4.9 m/s2, with m1 = 10 gram (two nickels) and m2 = 5 gram (one nickel) as shown, what is the tension T in the string in millinewton (mN)? (Hint: the upward arrow on ae is correct and just means use "positive is up" conventions for the elevator itself, so here we have ae = -4.9 m/s2 to be put into Einstein's rule that we discussed.) b) Exact same Atwood machine as the previous problem (two nickels and a nickel in an elevator accelerating down at 4.9 m/s2), but now how much time (s) does it take m1, starting from rest, to fall 25 cm relative to the inside of the elevator? I labeled it a and b because they are connected to each other. Please help, thanks!
Determine the velocity of the crate when t = 4 s. Express your answer to three significant figures and include the appropriate units. The coefficient of kinetic friction between the 55-kg crate and the ground is μk = 0.3. The crate starts from rest, and P = 240 N. (Figure 1) Part A Figure 30° ✓ 1 of 1 НА ? v = Value Units Submit Request Answer Part B Determine the distance the crate travels when t = 4 s. Express your answer to three significant figures and include the appropriate units. НА ? 8 = Value Units Submit Request Answer Provide Feedback
A train is traveling up a 2.78 ° incline at a speed of 4.44 m/s when the last car breaks free and begins to coast without friction. Part A How long does it take for the last car to come to rest momentarily? Express your answer using two significant figures. HV ΑΣφ t = S Submit Request Answer Part B How far did the last car travel before momentarily coming to rest? Express your answer using two significant figures. ΑΣφ ? S = m Submit Request Answer Provide Feedback
d. Force is a vector quantity and thus has both a magnitude and a direction. A vector can be represented graphically by a line drawn to scale in the direction of the line of action of the force. To distinguish between vector and scalar quantities, various ways are used. Identify and explain threeof these ways.
Sketch the correct direction of the acceleration vector a⃗ a→ for the system shown in (Figure 1). Sketch the correct direction of the velocity vector v⃗ v→. Select the correct description of a real object for which this is the correct free-body diagram. A ball rolling down a hill. A car is skidding up an embankment. A climber climbs up the Everest mountain. A box resting on an inclined surface.