Translational Kinetic Energy

AP Physics 1· difficulty 2/5

Two objects have the same momentum but masses m1=mm_1 = m and m2=4mm_2 = 4m. The ratio of their kinetic energies K1/K2K_1/K_2 is

  • A

    1/161/16

  • B

    44

    check_circle
  • C

    1616

  • D

    1/41/4

Explanation

K=p2/(2m)K = p^2/(2m). Same pp: K1/K2=m2/m1=4K_1/K_2 = m_2/m_1 = 4.

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