Posted: February 7th, 2025

Answer the Physics Problems

Question description

Open Yenka and then click on New Model. From the Parts Library (on the left of screen) click on Motion and Forces, Motion, Slopes, Wooden Slope. Drag the Wooden Slope on to the simulation window. Click on the slope in the simulation window and change the angle from -20 to -10 degrees in the properties pane at the left of the screen. Press Enter In the toolbar at the top of screen highlight the Pause simulation button.Go back to the parts Library and click on Blocks. Drag Wooden Block so that it is placed at the top of the wooden slope. From the parts library again, click Presentation (scroll down) and drag the Graph icon onto the simulation window.Click and drag on the Target tool next to the graph window so that a line connects the target tool to the block. The connecting line goes solid when the connection has been made. Release the mouse button. The line now turns a red-dashed colour. Click on Property... just to the left of the y-axis on the graph and click on Kinetic energy(total) from the list that appears. The properties pane should appear on the left of the screen. Click on the the Y-axis scale and adjust the range in the properties pane from 0J (min) to 7J (max) with major gridlines every 0.5J. Set the X-axis range from 0 to 3, with major gridlines every 1 second.Click on the short red line to the left of the graph and go to Traces. Find Trace 2 in the drop-down menu. Check the show trace box. Go back to your graph and drag the new (blue) Target tool so that a line connects the tool to the block again. Click on Property... next to the y-axis on the graph again and click on Gravitational potential energy from the list that appears. Click on the Y-axis scale and check that the range is the same as that for the Kinetic energy, ie, 0J to 7J.Click on the Start simulation button Then click on the Wooden Slope again and go to the Properties pane. Click on Angle and increase the angle from -10 to -20 degrees. You may need to click on the Restart button (right of graph window) first to reset. The block should slide down the slope. Once block has reached the bottom of the slope highlight the Pause simulation button again to capture the traces on your graph. Click on the block and drag it back up the slope to start again. Hit the Restart and Start simulation buttons and repeat. Follow Up questionsAll calculations must be shown.1. Copy your Kinetic energy and Potential Energy-time traces on your graph for when the block slides down the slope. You should have two traces on your graph: a red trace and a blue trace. Clearly show whcih is which and clearly label and number your axes.2. Assuming the block has a mass of 1kg, use your graph to find the speed of the block just before it reaches the bottom of the slope. Show all calculations.3. Using your traces from Question 1, how much work was done by the block against friction as it slid down the slope? Show all calculations. (Potential energy at top of slope=Kinetic energy close to bottom of slope + Work down against friction)

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