A 2kg block slides on a horizontal floor with a speed of 4 m/s. It strikes on uncompressed spring and compresses it fill the block is motionless. The kinetic friction force is 15N and spring constant is 104N/m. The spring compress by _______.
A. 5.5 cm
B. 2.5 cm
C. 11 cm
D. 8.5 cm
Answer:A
A 2kg block slides on a horizontal floor with a speed of 4 m/s. It strikes on uncompressed spring and compresses it fill the block is motionless. The kinetic friction force is 15N and spring constant is 104N/m. The spring compress by _______.
A. 5.5 cm B. 2.5 cm C. 11 cm D. 8.5 cm