سؤال في الشغل والطاقة

[abdulraheem1]

A block of mass 4 kg is traviling along the x-direction collides with a spring having a spring constant K=100N/m attached to the wall. If the speed of the block just before collision is 1 m/s and the spring is compresses a distance x=10 before the block comes momentarily to rest ,then


Find The energy lost( in j) due to friction in compressing the spring?

a.-1.5 b.-0.5 c.-1 d.-3.5


أتمنى ممن يعرف الاجابة ان لايبخل علينا بوضع الحل لأني حاولت الحل ولكن لم أوفق ....وشكرا للجميع