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Chapter 2-3 Lecture Notes Skeleton

# Chapter 2-3 Lecture Notes Skeleton - t = 2 s 3)If the...

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A stupid man shoots a bullet straight upwards. The bullet leaves the gun at time t = 0 with velocity v = vo = 200 m/s [U]. Assume a = 9.81 m/s2[D] and y o= y ( t =0) = 0. 2)At what time t > 0 is the velocity of the bullet 10.0 m/s [D]? 3)What is the maximum altitude of the bullet? 4)When is the bullet at an altitude of 500 m? A cannon shoots a cannonball projectile toward the wall of a canyon, as shown at right. The initial velocity of the projectile is v = 200 m/s [R40°U] and its acceleration is 9.81 m/s2[D]. 1)What is the projectile’s velocity at time t = 2 s? 2)What is the projectile’s position at time

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Unformatted text preview: t = 2 s? 3)If the projectile hits the bottom of the canyon what is its range? 4)If the projectile hits the wall of the canyon, what is its altitude at impact? 5)So where does the projectile land? • An object is moving at 10 m/s [N] at time t = 0. It is moving at 10 m/s [E30°S] at time t = 2 s. 1)What is the average acceleration of the object during this 2 second time interval? 2)What is the displacement of the object during this time interval? 3)Assuming that its acceleration is constant, what is the velocity of the object at time t = 1 s?...
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