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Maintaining a constant velocity

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  1. What is the forward velocity of a 250 lb stone projectile that leaves a medieval catapult 55° from the ground at 50 m/s?
  2. A river flows east at 1.50 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 10.0 m/s due north in the water. What is the size of the velocity of the boat as viewed by shore?
  3. A woman throws a javelin 35 mph at an angle 30° from the ground. Neglecting wind resistance or the height the javelin thrower, how fast will the javelin strike the ground?

Reference no: EM132037711

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