Question 22 (3 points) Work and Energy W = FAd cos 0 ... 1.1 W = AE ... 1.4 AEK = Amv2 ... 1.7 AEg = mgAh ... 1.2 Ee = }kAx2 ... 1.5 Fa = kAx ... 1.8 T = 27 VK ... 1.3 P = At ... 1.6 Momentum and Collisions p = mu ... 2.1 p = FAt ... 2.6 mivi + mzviz = mivh + mzuf2 ... 2.2 Uf = mivitm2viz ... 2.7 m1+m2 ... 2.3 of = m1-m2 2m2 m1+m2 m1+m2 Viz ... 2.4 Uf2 = mi-m2 2m2 m1+m2 Viz + m1+m2 Vil ... 2.8 of = m1-m2 ... 2.5 Uf2 = 2m1 m1+m2 m1+m2 Vil ... 2.9 Two trolleys, of mass 2 kg and 5 kg, are at rest with a compressed spring between them. A string holds the carts together. When the string is cut, the trolleys spring apart. The force constant of the spring is 2.4 x 103 N/m, the 2kg trolley slides 1.2 m in 0.5 seconds. Determine the time it takes the 5.0kg box to move 0.90 meters to the opposite end of the track. (1) Indicate the equation number of the equation/s you used and (2) the velocity of 2kg trolley (3) the velocity of 5kg trolley (4) the time for 5kg trolley