(1) The 3-block system shown below is on a surface that is so slippery you may consider it to be frictionless. The 3.0 kg and 1.0 kg masses are connected by a very light rope, and a force F = 84 N force acts directly on the 2.0 kg mass as shown. (a) Calculate: the tension in the rope • the force exerted on the 2.0 kg block by the 3.0 kg block • the force exerted on the 3.0 kg block by the 2.0 kg block. [answer: tension in rope = 14 N; F30n2 = F20n3 = 56 N] (b) Suppose all three blocks had a common speed of 42 m/s to the left at the moment the force F was applied. How long will it take the motion of the blocks to reverse direction after F is applied? [answer: 3.0 s] 1.0 kg F 2.0 kg 3.0 kg

i never practiced a problem like this in chapter six and need some help working through it as i’m rusty on the concepts of 6

In the figure, a 4.00 kg block is sent sliding up a plane inclined at 0 = 39.0° while a horizontal force of magnitude F = 45.0 N acts on it. The %3D coefficient of kinetic friction between block and plane is 0.30. What is the magnitude and direction (up or down the plane) of the block's acceleration?

As shown in the figure below, a box of mass m = 68.0 kg (initially at rest) is pushed a distanced = 69.0 m across a rough warehouse floor by an applied force of F = 236 N directed at an angle of 30.0° below the horizontal. The coefficient of kinetic friction between the floor and the box is 0.100. Determine the following. (For parts (a) through (d), give your answer to the nearest multiple of 10.) F 30 rough surface Iwwwwwwwwwwww (a) work done by the applied force WA = (b) work done by the force of gravity (c) work done by the normal force WN = (d) work done the force of friction W; = (e) Calculate the net work on the box by finding the sum of all the works done by each individual force. WNet = (f) Now find the net work by first finding the net force on the box, then finding the work done by this net force. WNet = Additional Materials O Reading

At an accident scene on a level road, investigators measure a car's skid mark to be 89 m long. It was a rainy day and the coefficient of friction was estimated to be 0.43. Use these data to determine the speed of the car when the driver slammed on (and locked) the brakes.

A skater of mass m standing on ice throws a stone of mass M with speed v in a horizontal direction. Find the distance over which the skater will move in the opposite direction if the coefficient of kinetic friction between the skater and the ice is  ?k . (Use any variable or symbol stated above along with the following as necessary: g.)Δx =