Objects with masses m,=15.0kg and m,=6.0 kg are connected by a light string that passes over a frictionless pulley as in the figure below. Find the final speed of the blocks when the block m1 moves down a distance of 1.3 m. Assume that the system starts from rest. (Use conservation of energy)_
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- A block of mass m= 5.00 kg is reased from point A and slides dows the frictionless track shown in the figure. calculate the speed of the block at piont B and C. g= 9.8m/s2Tarzan swings on a 23 m long vine initially inclined at an angle of 55 degrees to the vertical. What is his speed at the bottom of the swing if he starts from rest? Ignore all non-conservative forces. Round your final answer to 1 decimal place. Hint: You must find the height difference between the starting position and the lowest position.A student is riding a bicycle at a constant speed on a level road. When apply the following energy principle to this question, assuming the system is student+bicycle+road+earth, which of the energy term is negative? Select all apply. ΔK + ΔUg + ΔUsp + ΔEth + ΔEch = Wexternal ΔK ΔUg ΔUsp ΔEth ΔEch Wexternal none of the above
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