Question

PSIA A block of ice slides along a frictionless horizontal track with a speed of 12 ms. At the end of the track is a horizontally mounted spring The lo block sides along the track until it makes contact with the spring causing to compress. What is the speed of the ice block when the spring has been compressed by 60% of the maximum compression length between 0 and 105 mis between 0 15 and 30' between 0 and 0.75 band 045 less than 0.15 between 0.45 and 0.60 between 0 75 and ms between 105 and 120 m Sub Request Aswer

Answer 1

(Soln ,2 o at maximum Manimum Compression of string can be found by Energy Conservation relation. mv, | kx (As speed to Compression] Again, when spring with Compressed by boy of xam let speed & mv² = I mv² + 1 k Į mv² + 1 KK JX / from I mu; ² = 1 mv ² + (6 mv. 2 x 5 لا يش thon. 2. 3 2 1 116 (25 y = 16 vi? 25 - V - 4 Vi = ogui or vi = 1.2 m/s. V= 1-2x0-8 = 0.96 m/s. 1st obtion is correct.