A block slides down a ramp with negligible friction as shown in the diagram below. Start Finish, Start Finish Start Finish, .... Choose the appropriate tickertape diagram above to match the motion of the block sliding down the ramp A C B or C
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- If two tugboats pull on a disabled vessel, as shown here in an overhead view, the disabled vessel will be pulled along the direction indicated by the result of the exerted forces. (a) Draw a free-body diagram for the vessel. Assume no friction or drag forces affect the vessel. (b) Did you include all forces in the overhead view in your free-body diagram? Why or why not?The contestant now pulls the block of ice with a rope over his shoulder at the same angle above the horizontal as shown below. Calculate the minimum force Fhe must exert to get the block moving. (b) What is its acceleration once it starts to move, if that force is maintained?A block slides with constant speed under the action of the force shown (see figure 1.7)(A) How large is the retarding force?(B) What is the coefficient of kinetic friction between the block and the floor?
- 1) A man pushes a 20.0 kg lawn mower with a force of 80.0 N directed along the handle, which is inclined at 30.0° to the horizontal as shown in the figure below. (a) If he moves at constant velocity, what is the impeding force due to the ground? (b) What force along the handle would produce an acceleration of 1.25 m/s' given the same impeding force? I need to show all work draw pictureA block is given an initial speed of 4.8 m/sm/s up the 29 ∘ 1) How far up the plane will it go? Express your answer using two significant figures. 2)How much time elapses before it returns to its starting point? Ignore friction. Caption: Block on inclined plane. Express your answer using two significant figures.1. Make a sketch of how you think the acceleration vs. mass graph will look for carts with different masses released from rest from the top of an inclined track. 2. Do you think the acceleration of the cart increases, decreases, or stays the same as the mass of the cart increases? Explain your reasoning.
- 3. Here is a problem that beautifully illustrates why we want this new approach. Problem: A mass of 3 kg is placed on a 600 that has a coefficient of 0.2. (Since the mass will be moving this is kinetic friction...) What is the resulting acceleration of the mass? The mass will then travel down the incline for 0.5 m until it reaches the bottom of the incline. How fast will the mass be traveling at the bottom of the incline? The mass will then slide across the floor (which is level). How far will it slide before coming to rest?1. Write Newton’s 2nd law along the ? and ? directions for both blocks considering their state of motion (accelerations). 2. What are the magnitude and direction of the frictional force on the upper box? 3. What is the magnitude of the applied force?The lower block in the figure is pulled on by a rope with a tension force of 20 N. The coefficient of kinetic friction between the lower block and the surface is 0.27. The coefficient of kinetic friction between the lower block and the upper block is also 0.27. What is the acc of the 2.0 kg block? I can't figure out how to set the FBD up correctly. See figure for a picture
- 3. Consider an inclined plane with two balls suspended as shown below. The pulley has negligible mass and both the pulley and the surface of the incline are frictionless.a. If one of your classmates calculated that, once released, the acceleration of the blocks would be 43?, without doing any calculations, say whether or not this could be a reasonable value for the acceleration.b. Draw and label a free body diagram (FBD) for each ball. (Don’t break any forces into components for the FBDs—save that work for the next question. Be sure your drawings show clearly any information you know about the directions and relative magnitudes of the forces.) Rank the relative magnitudes of all forces in your FBDs. (I’m looking for a single ranking that includes every different force in both FBDs, separated by <, >, or =.)Ball A: Ball B: *please write detail for solution as much as possible3. Consider an inclined plane with two balls suspended as shown below. The pulley has negligible mass and both the pulley and the surface of the incline are frictionless.a. If one of your classmates calculated that, once released, the acceleration of the blocks would be 43?, without doing any calculations, say whether or not this could be a reasonable value for the acceleration.b. Draw and label a free body diagram (FBD) for each ball. (Don’t break any forces into components for the FBDs—save that work for the next question. Be sure your drawings show clearly any information you know about the directions and relative magnitudes of the forces.) Rank the relative magnitudes of all forces in your FBDs. (I’m looking for a single ranking that includes every different force in both FBDs, separated by <, >, or =.)Ball A: Ball B:relative sizes of the magnitudes of all forces in FBDs:__________________________________________________________________c. Use the FBDs from the previous…Compare and contrast the dynamics of a cyclist riding along a velodrome track at a constant speed, to one who is freely rolling down the track/ramp (no friction). a. Construct free-body diagrams for each situation (angle = ɵ). b. Draw a “dotted arrow” showing the direction of acceleration for each case on the FBD. c. Starting with FNET=ma (in the direction of “a”), determine an equation for “a” for each.