B D.
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At what position in the diagram is the gravitational force doing positive work?(Check the attached picture)
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- A block of mass 7.50 kg is being pulled along a level surface as shown, by a force directed at 30.0 degrees above horizontal. The pulling force has a magnitude of 68.0 N. Ignore the friction for now. If the total work done by the pulling force is 255 J, then how far has the block traveled? Hints on solving strategy: Remember from Flipping Physics that work is measured in Joules (J). You'll need to use the formula Mr. P gives for calculating the work done by a force over a given displacement.Which of the following force is doing a positive work on the box? The box is displaced to the right as shown. Select all apply. F1 F2 F3 F4 F5 F6 F7 none of the aboveTwo forces are used to move a block 2 meters across a level surface shown in the following figure. Is the work done by force A greater than, equal to or less than the work done by force B? (Note: the force vectors are drawn to scale) Source: Physics: A Conceptual Worldview; 7th edition
- Show and explain the complete solution with the formulas. Label the symbols used accordingly.The figure below shows an overhead view of two horizontal forces pulling a box along the floor. How much work does each force do as the box is displaced 70 cm along the broken line. What is the total work done by the two forces in pulling the box this distance?10 and 11 please