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Today’s Puzzler:

Today’s Puzzler: The picture shows the tire tracks made by the two wheels of a bicycle as it traveled through snow. In which direction was the bicycle moving ? Which track corresponds to the front wheel? Right to left; A is front wheel. Right to left; B is front wheel.

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Today’s Puzzler:

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  1. Today’s Puzzler: • The picture shows the tire tracks made by the two wheels of a bicycle as it traveled through snow. • In which direction was the bicycle moving? • Which track corresponds to the front wheel? • Right toleft; A is front wheel. • Right to left; B is front wheel. • Leftto right; A is front wheel. • Left to right; B is front wheel.

  2. 1 of 3 • A projectile is launched along the path shown. The velocities at times 1 and 2 are shown. Time 1 is soon after launch. Time 2 is at the apoapsis of the flight. The x velocity of the projectile at time 2 is • greater than • equal to • less than • that at time 1. y v2 2 v1 path 1 x 2

  3. 2 of 3 • A projectile is launched along the path shown. The velocities at times 1 and 2 are shown. Time 1 is soon after launch. Time 2 is at the apoapsis of the flight. The magnitude of the acceleration of the projectile at time 2 is • greater than • equal to • less than • that at time 1. y v2 2 v1 path 1 x 3

  4. 3 of 3 • A projectile is launched along the path shown. The velocity at time 2 is shown. Time 2 is at the apoapsis of the flight. The acceleration experienced by the projectile at time 2 is • upward. • rightward. • downward. • zero. y v2 2 path x 4

  5. ANNOUNCEMENTS 5

  6. 1 of 3 • A projectile is launched along the path shown. The velocities at times 1 and 2 are shown. Time 1 is soon after launch. Time 2 is at the apoapsis of the flight. The x velocity of the projectile at time 2 is • greater than • equal to • less than • that at time 1. y v2 2 v1 path 1 x 6

  7. 2 of 3 • A projectile is launched along the path shown. The velocities at times 1 and 2 are shown. Time 1 is soon after launch. Time 2 is at the apoapsis of the flight. The magnitude of the acceleration of the projectile at time 2 is • greater than • equal to • less than • that at time 1. y v2 2 v1 path 1 x 7

  8. 3 of 3 • A projectile is launched along the path shown. The velocity at time 2 is shown. Time 2 is at the apoapsis of the flight. The acceleration experienced by the projectile at time 2 is • upward. • rightward. • downward. • zero. y v2 2 path x 8

  9. PROJECTION SCREEN 1 4 1 4 1 4 1 4 2 5 2 5 2 5 2 5 3 6 3 6 3 6 3 6 I7: HAND IN TODAY’S ACTIVITIES SHEETS 9

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