For the multiple choice questions below, darken the circle which corresponds to
ID: 1878903 • Letter: F
Question
For the multiple choice questions below, darken the circle which corresponds to the cor- rect response to the question. Alternatively, you may submit a numbered list of choice in a separate answer sheet or you may send in your homework via email. Unless otherwise stated, assume the point of impact of projectiles is zero height above a horizontal surface. #1 Projectile Motion: Horizontal Launch A projectile is launched horizontally from a height of 2.00 meters, and with a velocity of 450 m/s. Neglecting air resistance and using 9.8 m/s2 for g, what is the range of the projectile? O A. 153 m O B. 287 m O C. 341 m O D. 467 m #2 Projectile Motion: Velocity Components A projectile is launched with a speed of 30.0 m/s and at an angle of 30° with respect to the horizontal direction. What is the initial velocity when expressed as an ordered pair? 0 A. (30.0 m/s, 30.0 m/s) O B. (26.0 m/s, 15.0 m/s) C. (15.0 m/s, 26.0 m/s) O D. (26.0 m/s, -15.0 m/s)Explanation / Answer
1.
Considering motion along vertical
2= 0.5gt^2
t= 0.64 s
Considering motion along horizon
R= 450*0.64= 287.5 m
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