diagram

1A. Create a force diagram of a system car and mass hanger as they move together? 1B. How does the acceleration of the car compare to the acceleration of the mass hanger? justify your answer. 1C. What causes the system to accelerate? 1E.Do you expect the acceleration of your system to be smaller than, greater than or equal to the acceleration due to gravity? Justify your answer. 1F.Using newtons second law and the diagram you created in question #1a give the acceleration of the system as a function of the masses of the cart and the hanger.

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3. An elevator is moving downward at 1m/s. It is speeding up, with an acceleration of 3m/s². A block with a weight of 40N sits inside the elevator. a) What direction does the acceleration point? b) What is the mass of the block? c) Draw a force diagram of the block, and fill out the force table for the block below. (There are no horizontal forces so we don't need the x column.) Force d) Solve for any unknown forces on the block. y +y 1m/s

2. Horizontal Case: Assume x & y equilibrium, & no sliding. Use magnitudes for parts a - g. Desired answers are all symbolic formulas, numerical results will be arrived at later.) wooden block wooden board m₂ g pulley slotted mass hanger a. What is the magnitude of the weight, W₁, of the wood block + cargo in terms of their mass, mı? mg b. What is the magnitude of the hanging weight, W2, in terms of its mass, m2? c. Use vertical equilibrium of the wood table to express the magnitude of the normal force on the wood block, N, in terms of the magnitude of the weight, W₁, of the wood block + cargo. d. Use vertical equilibrium of the hanging string to express the magnitude of the tension, T, in terms of the magnitude of the hanging weight, W2. e. Use horizontal equilibrium of the wood table to express the magnitude of the friction, f, in terms of the magnitude of the tension, T. f. Use the definitional equation to also express the magnitude of the friction, f, in terms of the magnitude of…

Steven is standing in an elevator that is moving upward, but slowing down as it approaches the 27th floor where Steven lives. Which of the following is true? 1. The force of the floor on Steven is smaller in magnitude than the force of gravity on Steven. Steven accelerates upward.   2. The force of the floor on Steven is equal and opposite to the force of gravity on Steven.   3. The force of the floor on Steven is greater in magnitude than the force of gravity on Steven. Steven accelerates upward.   4. The force of the floor on Steven is greater in magnitude than the force of gravity on Steven. Steven accelerates downward.   5. The force of the floor on Steven is smaller in magnitude than the force of gravity on Steven. Steven accelerates downward.

That same 80 kg object is sliding across the table because you are applying a force of +300 N. If the coefficient of friction is 0.3, Determine the NET Force acting on the object, if any. Again, I would draw the free body diagram for this question. O a. +240 N b. +60 N C. -60 N d. -240 N

A ball is hanging from a bracket fixed to the wall of an elevator. The elevator is accelerating in the upward direction. What is the reaction force (required by the third law of motion) to the force of gravity on the ball? A. (a) The mass of the ball. B. (b) The gravitational pull of the ball on the earth. C. (c) The gravitational pull of the earth on the ball. D. (d) The tension force of the ball on the rope. E. (e) The tension force of the rope on the ball. F. (f) The tension force of the rope on the bracket. G. (g) The force acting on the elevator to accelerate it. H. (h) A force between the elevator and the bracket, acting on one or the other. I. (i) None of the above.

tapplication of NZL 1. I conduct a Physics experiment on the moon and on Earth. In this experiment, I push on my 70 kg partner who is standing on a frictionless, horizontal floor (of course) with 100 N of force parallel to the ground. (a) What is his acceleration on Earth? (b) How would the result change when I conduct it on the moon? Explain/show. 2. I am crouched down at rest near the surface of the Earth. I then spring upward as hard as I can. While springing upward, what is the relationship between the normal force applied to me from the floor and the gravitational force exerted on me by the Earth? Explain why this must be so. WL

Answer question 3