A spring (k = 600 N/m) is placed in a vertical position with its ...

[ereecah]

A spring (k = 600 N/m) is placed in a vertical position with its lower end supported by a horizontal surface. A 2.0-kg block that is initially 0.40 m above the upper end of the spring is dropped from rest onto the spring. What is the kinetic energy of the block at the instant it has fallen 0.50 m (compressing the spring 0.10 m)?
 a. 5.3 J
  b. 6.8 J
  c. 6.3 J
  d. 5.8 J
  e. 6.5 J

Question 2

A spring (k = 600 N/m) is at the bottom of a frictionless plane that makes an angle of 30 with the horizontal. The upper end of the spring is depressed 0.10 m, and a 2.0-kg block is placed against the depressed spring. The system is then released from rest. What is the kinetic energy of the block at the instant it has traveled 0.10 m and the spring has returned to its uncompressed length?
 a. 2.0 J
  b. 1.8 J
  c. 2.2 J
  d. 1.6 J
  e. 1.0 J

[karlss]

Answer to Question 1

B

Answer to Question 2

A

[ereecah]

TY

[karlss]

You're welcome