Consider two sleds that are connected by a rope. The first sled has a mass of 50 kg, while the second sled has a mass of 60 kg. If a force of 200 N acting in the direction along the East is pulled by a rope connected to the first sled,  A.) determine the acceleration of the sled and B.) the tension in the rope connecting the two sleds.

2. In the figure below Block A has a mass of 30.0 kg and Block B has a mass of 10.0 kg. Both blocks are resting on frictionless surfaces. a) Draw the free body diagram and kinetic diagrams of each block. b) Determine the acceleration of the blocks. c) Determine the tension in the cord.

9. The block and the bucket are connected by a string and pulley as shown. Assume that the string and pulley is massless. Mass of the block is 28.0 kg and mass of bucket is 35.0 kg. a) Draw the free body diagrams for each block b) Find the magnitude of the acceleration of the blocks. c) Find the magnitude of the force of tension. 28.0 kg 7

Two boxes are connected by a massless string across a massless frictionless pulley.  Box S has a mass M and box H has a mass m as shown. a) Do a free-body diagram for these objects. b) Write Newton's Second Law equation for these objects, horizontal component only for box S and vertical component only for box H. c) Solve algebraically for the acceleration of the boxes. d) Given M=8.4 kg and m=5.7 kg, use your equation from part c) to find the value of the acceleration. e) Use this answer to find the tension in the string.

A 40. kg block is placed on a ramp inclined thirty degrees to the horizontal as seen in the figure below. A horizontal force of 35 Newtons is placed on the block. If the coefficient of static friction is: 4, = 0.65 will the block remain stationary on the ramp or will it slide? 1) Sketch a free-body-diagram for this situation, include an axis. 2) Analyze the free body diagram using Newtons 2nd law. 3) Calculate f 4) Calculate fi marc 5) Draw a conclusion (circle one) F The block slides down the ramp The block remains stationary 30.0⁰ The block slides up the ramp

6. A postwoman pushed a box at rest weighing 255 N at a constant force of 22.0 N. a) Draw a free-body diagram showing all the forces that may apply. b) What was the acceleration of the moving box? c) How far would it move in 3.00 seconds?

If a car is moving under driving force (there is engine force), also there is air resistance and friction force acting on it, then the free body diagram of the car is: a. Motion engine mg b. Motion Fongine mg

5. Let's revisit the practice problem. Two blocks are connected by a rope passing over a frictionless pulley as shown below. The mass of the rope is negligible. 30 kg 52 kg a) Using Newton's second law, calculate the acceleration of the 30-kg mass.