V3

3. If a 20 kg collar travels down a frictionless slope with initial speed 10 m/s, and the spring remains horizontal throughout the motion, what is the difference in spring potential when the collar moves from si to $2? The spring's original length is 8m. [1] a. 7500 ] b. 2500 ) 1=1 c. 3500 J d. 3600 ] O 10 m 20 m