A spring with a spring constant k = 1600 N/m is at rest on the bottom of an inclined plane. A 7.0-kg block slides down the plane and makes contact with the spring at point A as shown. After contact, the spring is compressed to point B, 0.20 m from point A, where the speed of the block is zero m/s. What was the speed of the block just before contact with the spring?
A)3.2 m/s
B)12 m/s
C)2.4 m/s
D)9.1 m/s
E)4.2 m/s

Question

A spring with a spring constant k = 1600 N/m is at rest on the bottom of an inclined plane. A 7.0-kg block slides down the plane and makes contact with the spring at point A as shown. After contact, the spring is compressed to point B, 0.20 m from point A, where the speed of the block is zero m/s. What was the speed of the block just before contact with the spring? 
A)3.2 m/s 
B)12 m/s 
C)2.4 m/s 
D)9.1 m/s 
E)4.2 m/s

Quizplus · Accepted Answer

The Answer of A spring with a spring constant k = 1600 N/m is at rest on the bottom of an inclined plane. A 7.0-kg block slides down the plane and makes contact with the spring at point A as shown. After contact, the spring is compressed to point B, 0.20 m from point A, where the speed of the block is zero m/s. What was the speed of the block just before contact with the spring? 
A)3.2 m/s 
B)12 m/s 
C)2.4 m/s 
D)9.1 m/s 
E)4.2 m/s

A Spring with a Spring Constant K = 1600 N/m