The graph shows the time dependence of the vertical displacement of a lead ball with marked initial and final states. Choose all the work-energy bar charts that can represent the process. Note that the y-axis can point either up or down

The graph shows the time dependence of the vertical displacement of a lead ball with marked initial and final states. Choose all the work-energy bar charts that can represent the process. Note that the y-axis can point either up or down

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m ↑ h₁ a Determine the speed that mass m must have so that when it reaches the height of h, it has half its original speed. All surfaces are frictionless. Show all relevant work and reasoning for credit.
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On a roller coaster ride the total mass of a cart - with two passengers included - is 268 kg. Peak K is at 43.2 m above the ground and peak L is at 26.0 m. At location K the speed of the cart is 17.2 m/s, and at location L it is 12.5 m/s. (The wheel mechanism on roller coaster carts always keeps the carts safely on the rail.) K How much mechanical energy is lost due to friction between the two peaks? Submit Answer Tries 0/10
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Physics help! what is the work Wn done on the box by the normal force? so find Wn=____J * hint given background information "the work Ww done in the box of weight of the box is Ww= 1.8 J" next find the work of Wfk done on the box by the force of kinetic friction? give your answer in: Wfk=___J i have attached supporting details at the bottom.
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