PHSX 114 - Homework #16

# PHSX 114 - Homework #16 - h = [Num] [Units] b. Determine...

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PHSX 114 – HOMEWORK # 16 Question 1: (2 points) A 13-kg hammer strikes a nail at a velocity of 6.6 m/s and comes to rest in a time interval of 8.0 ms. Enter scientific notation as 1.23E4. a. What is the impulse given to the nail? [Num] [Units] b. What is the average force acting on the nail? [Num] [Units] Question 2: (2 points) A 28-g rifle bullet traveling 230 m/s buries itself in a 3.6-kg pendulum hanging on a 2.8-m-long string, which makes the pendulum swing upward in an arc. Enter scientific notation as 1.23E4. a. Determine the vertical component of the pendulum’s displacement.

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Unformatted text preview: h = [Num] [Units] b. Determine the horizontal component of the pendulums displacement. x = [Num] [Units] 1 Question 3: (2 points) A 950-kg sports car collides into the rear end of a 2,700-kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 3.1 m before stopping. The police officer, knowing that the coefficient of kinetic friction between tires and road is 0.78 , calculates the speed of the sports car at impact. What was that speed? Number Units 2...
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## This note was uploaded on 04/09/2008 for the course PHSX 114 taught by Professor Davis during the Spring '08 term at Kansas.

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PHSX 114 - Homework #16 - h = [Num] [Units] b. Determine...

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