) 5.7-g bullet is fired from a gun into a 1.00-kg block of wood held in a vise. The bullet penetrates the block to a depth of 8.9 cm. An identical block of wood (with no bullet inside) is next placed on a frictionless horizontal surface, and a second identical bullet is fired from the same gun into the block. How much smaller is the penetration depth in the second case? (Hint: The depth in the second case should be smaller
A(n) 5.7-g bullet is fired from a gun into a 1.00-kg block of wood held in a vise. The bullet penetrates the block to a depth of 8.9 cm. An identical block of wood (with no bullet inside) is next placed on a frictionless horizontal surface, and a second identical bullet is fired from the same gun into the block. How much smaller is the penetration depth in the second case? (Hint: The depth in the second case should be smaller because some of its original kinetic energy is retained in the bullet-block system.)
Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully.
________ mm smaller
What is the muzzle velocity of the bullet if it produces 910 J of heat in the second case?
________ m/s
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