physics hmwk 1 key

# physics hmwk 1 key - IB Phys SL GOHS 2.5 Worksheet:...

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IB Phys SL GOHS 2.5 Worksheet: Constant Acceleration and Kinematic Equations Concept Questions: 10. Car A, traveling from New York to Miami, has a speed of 25 m/s. Car B, traveling from New York to Chicago, also has a speed of 25 m/s. Are their velocities equal? Explain. 14. Consider the following combinations of signs and values for the velocity and acceleration of a particle with respect to a one-dimensional x -axis: Velocity Acceleration a. Positive Positive b. Positive Negative c. Positive Zero d. Negative Positive e. Negative Negative f. Negative Zero g. Zero Positive h. Zero Negative Describe what the particle is doing in each case, and give a real-life example for an automobile on an east-west one-dimensional axis, with east considered the positive direction. Problems: 25. In 1865, Jules Verne proposed sending men to the Moon by firing a space capsule from a 220- m-long cannon with final speed of 10.97 km/s. What would have been the unrealistically large acceleration experienced by the space travelers during their launch? (A human can stand an acceleration of 15 g for a short time.) Compare your answer with the free-fall acceleration, 9.80 m/s2. 31.

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## physics hmwk 1 key - IB Phys SL GOHS 2.5 Worksheet:...

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