PHC3Exam2007A

# PHC3Exam2007A - PHYSICS HONORS v v x v= t vvv v f = vo at...

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PHYSICS HONORS CH. 3 TEST: TWO-DIMENSIONAL KINEMATICS form 1 Show your work. Use scientific notation for answers larger than 100 and less than 0.10. Include magnitude and direction for all vectors. Write answers using three significant figures. x v t = v v v a t = v v 13 12 23 v v v = + v v v 12 21 v v = - v v f o v v at = + v v v 2 1 2 o d v t at = + v v v 1 2 2 f d v t at = - v v v ( 29 1 2 f o d v v t = + v v v ax v v o f 2 2 2 + = 2 9.80 [ ] g m s = D v x y A A A = + v v v 2 2 2 2 cos c a b ab θ = + - A guided missile is initially moving when it begins to accelerate. After twenty seconds of acceleration, the missile's displacement is 12.0 km [W20ºS] and its final velocity is 500 m/s [W]. 1) What was the initial direction of the missile’s motion? A gun is set up on top of a plateau that is 200 m high, as shown at right. The gun fires a projectile with an initial velocity of 150 m/s [N35ºU]. The projectile lands at the bottom of the plateau. 2) What is the range of the projectile? A jetliner is moving at 250 m/s [E30ºS] relative to the air. Because of high altitude winds, a radar station on the ground measures the jetliner’s velocity to be 100 m/s [E]. 3) What is the speed of the wind? A boy is playing with a toy airplane attached to a string. At time t = 0 s, the toy plane is moving at 3.0 m/s [N]. At time

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## This note was uploaded on 08/29/2010 for the course PHYS 38234 taught by Professor Ramesh during the Spring '09 term at Berkeley.

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PHC3Exam2007A - PHYSICS HONORS v v x v= t vvv v f = vo at...

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