Ch 02: Kinematics in One Dimension
Chapter 2, Problem 5
For an object starting from rest and accelerating with constant acceleration, distance traveled is proportional to the square of the time. If an object travels 2.0 furlongs in the first 2.0 s, how far will it travel in the first 4.0 s?
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Textbook Question
FIGURE EX2.5 shows the position graph of a particle. (a) Draw the particle’s velocity graph for the interval . <IMAGE>
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Textbook Question
Ann and Carol are driving their cars along the same straight road. Carol is located at x = 2.4 mi at t = 0 h and drives at a steady 36 mph. Ann, who is traveling in the same direction, is located at x = 0.0 mi at t = 0.50 h and drives at a steady 50 mph.
c. Draw a position-versus-time graph showing the motion of both Ann and Carol.
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Textbook Question
b. The motor of a 350 g model rocket generates 9.5 N thrust. If air resistance can be neglected, what will be the rocket's speed as it reaches a height of 85 m?
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Textbook Question
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Textbook Question
A rocket in deep space has an empty mass of 150 kg and exhausts the hot gases of burned fuel at 2500 m/s . It is loaded with 600 kg of fuel, which it burns in 30 s. What is the rocket's speed 10 s, 20 s, and 30 s after launch?
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