A rope pulls on the lower block in the figure with a force of 46.2 N. The coefficient of kinetic friction between the lower block and the surface is 0.1. The coefficient of kinetic friction between the lower block and the upper block is also 0.1. Consider the pulley/ropes to be massless and frictionless. The upper block's mass is 2.5 kg. The lower block's mass is 4 kg. What is the acceleration of the lower block? Express your answer in m/s2. Your result must contain at least one digit after the decimal point

A 12 kg mass hangs from a rope. A force is applied to the rope that the mass is accelerated upward at 2.6 m/s . What is the tension in the rope? Use g = 9.8 m/s ^ 2

The heaviest invertebrate is the giant squid, which is estimated to have a weight of about 0.20 tons spread out over its length of 36 feet. What is its weight in newtons? Incorrect: Your answer is incorrect. Your response differs significantly from the correct a

Krystal's cat, Charlie, had an unfortunate experience this morning. Charlie climbed the curtain and was afraid to come back down. Krystal heard the meowing and came to help him down. She decided this was a good opportunity to calculate the tension force Charlie exerted on the curtains. She placed him on a scale and used his mass to calculate the tension force on the curtains. If the cat caused 37N of tension on the curtain, what is Charlie's mass?

A steel beam is suspended from two ropes as it is lifted to the top of a building at a constant speed. One of the ropes makes an angle of 25.2 degrees with respect to the vertical and has a tension of 722 N, while the other makes an angle of 29.5 with respect to the vertical. What is the beam's mass in kg?

A coin is resting on the surface of a closed book. As you slowly open the cover, the coin remains in place (it doesn't slide). When the book's cover is open 14 degrees, the coin finally starts sliding down. What is the coefficient of static friction between the book and the coin?   Answer to 3 decimal places (e.g. 0.123).

A 5.95 kg block is sitting on a level floor.  A person is pulling on a rope attached to the block at a 34.84 degree angle above the horizontal (see figure). The force exerted by the person is 7.33 N.  What is the normal force acting on the block from its contact with the floor?

A crate that has a mass of m = 3.5 kg rests on a horizontal plane. The coefficient of static friction, μs, is 0.25. A horizontal force, F, is applied to the crate, and it is just enough to get the crate to begin moving.a. write an expression for the sum of the forces in the x-direction using that Ff is the static friction force, FN is the normal force and Fg is the weight.b. write an expression for the sum of forces in the y-direction using the same coordinate systemc. calculate the magnitude of F, in newtons, Ff is at its maximum

Two blocks are connected by a (massless) string that runs over a (massless, frictionless) pulley as shown. Assume there is no friction between block 1 and the surface of the incline. 40° 2 If m₁ = 3.9 kg and m₂ = 5.9 kg, what is the tension in the string? Express your answer in N, to at least one digit after the decimal point.

A block and a ball are connected by a string as shown in the figure. The block sits on a level, rough surface. The coefficient of static friction between the block and the surface is μ = 0.841. The ball hangs freely from the string. The mass of the block is 18.82 kg. What is the largest mass of a ball you could hang from the string without causing the block to slide?