A spring has a force constant of 80 Newtons per meter. The spring is compressed by 0.060 m and placed between two trolleys that run on a friction-free, horizontal track. Each trolley has a mass of 0.40 kg. When the spring is released the trolleys fly apart with equal speeds but in opposite directions. C) Calculate how much energy is stored in the spring when it is compressed 0.060 m. [ 2 ] D) Explain why the two rolleys must fly apart with equal speeds. [ 3 ] E) Calculate the speed of each trolley. [ 3 ]\f2 LO 0 144 = 0.36 0.40 UExplanation : you can understand by following steps . . . Step - 1. : when spring compsussed as given condition, During comprussion , total energy storied into the Spring is 2kx2 Step - 2 : when this compsussed spring pland between two trolly and released , suadendly spring get struched and provide momentum to two trolly and brolly will move with velocity 4 ( 0isbez as pant D ). on this case , total energy also will conserve . " "'e. what even initial P.E'd spring was canlien , noto it will convent : into KiE. of masses ie. P . E . aspning = KE.y masses (9dcally] 2 mul ' + 3 moz total kinetic energy 0 . 144 : ( : 01 = Q2 part D) mass of trolly = 0 . 401 1 0. 194 = 06 m/s 0.40 Ans