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A Block of Mass M Is Initially Moving to the Right

Question 50

Multiple Choice

A block of mass m is initially moving to the right on a horizontal frictionless surface at a speed v. It then compresses a spring of spring constant k. At the instant when the kinetic energy of the block is equal to the potential energy of the spring, the spring is compressed a distance of:


A) A block of mass m is initially moving to the right on a horizontal frictionless surface at a speed v. It then compresses a spring of spring constant k. At the instant when the kinetic energy of the block is equal to the potential energy of the spring, the spring is compressed a distance of: A) B) (1/2) mv<sup>2</sup> C) (1/4) mv<sup>2</sup> D) mv<sup>2</sup>/4k E)
B) (1/2) mv2
C) (1/4) mv2
D) mv2/4k
E) A block of mass m is initially moving to the right on a horizontal frictionless surface at a speed v. It then compresses a spring of spring constant k. At the instant when the kinetic energy of the block is equal to the potential energy of the spring, the spring is compressed a distance of: A) B) (1/2) mv<sup>2</sup> C) (1/4) mv<sup>2</sup> D) mv<sup>2</sup>/4k E)

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