The horizontal surface on which the block slides is frictionless. The speed of the block before it touches the spring is 6.0 m/s. How fast is the block moving at the instant the spring has been compressed 15 cm? k = 2.0 kN/m
A)3.7 m/s
B)4.4 m/s
C)4.9 m/s
D)5.4 m/s
E)14 m/s

Question

The horizontal surface on which the block slides is frictionless. The speed of the block before it touches the spring is 6.0 m/s. How fast is the block moving at the instant the spring has been compressed 15 cm? k = 2.0 kN/m 
A)3.7 m/s 
B)4.4 m/s 
C)4.9 m/s 
D)5.4 m/s 
E)14 m/s

Quizplus · Accepted Answer

The Answer is A

The Horizontal Surface on Which the Block Slides Is Frictionless