A 0.250-kg block along a horizontal trackhas a speed of 1.60 m/s immediately bef

Question

A 0.250-kg block along a horizontal trackhas a speed of 1.60 m/s immediately beforecolliding with a light spring of force constant 40.1 N/m located at the end of the track. (a) What is the spring's maximum compression ifthe track is frictionless?
1 m

(b) If the track is notfrictionless, would the spring's maximum compression be greaterthan, less than, or equal to the value obtained in part (a)?
2 greater
less
equal (a) What is the spring's maximum compression ifthe track is frictionless?
1 m

(b) If the track is notfrictionless, would the spring's maximum compression be greaterthan, less than, or equal to the value obtained in part (a)?
2 greater
less
equal 2 greater
less
equal 2 greater
less
equal 2

Explanation / Answer

KE=(1/2)*m*v2=(1/2)*0.250*1.62 let the spring is compressed by x m according to conservation of energy (1/2)*0.250*1.62=(1/2)*k*x2 0.250*1.62=40.1*x2x=0.126 (ans 1) spring's max compression would be less.

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