Question

A block of ice slides along a frictionless horizontal track with a speed of 1.2 m/s. At the end of the track is a horizontally mounted spring. The ice block slides along the track until it makes contact with the spring causing it to compress. What is the speed of the ice block when the spring has been compressed by 60% of the maximum compression length?

Answer 1

het, x be v= So, pn be mass of block, K be spring constant maximum compression of spring. to speed of block initially = 12 m/s, Cire- potential energy. at mu maximum compression = enesgy of the be speed when block) ge's £kse? nece? On را) Total Let, el GR Goy, of a 3 x 17 5. . < {kx2 + { miere ŹR. (3x źmut. mela £mo2 os, t =

t med 9 kg? E mor. 25 osi 9 ne? atmo mo2. 17 [using (3) 25 on, 62 9 2 اما 옳 62 25 16 .62 25 On W 4 v = oopjes x 1.2 m mis 0.96 ings g Answes is t = 0.96 ones