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- A projectile is fired with an initial speed of 25 m/s at an angle θ reaches a maximum height of 18m. The angle θ is given by a.) θ = 25.8o b.) θ = 75.3o c.) θ = 48.7o d.) θ = 30oIn the above drawing, a football is kicked from the ground with a velocity v at an angle θ andfollows the path indicated through the air. 2. The horizontal component of the velocity at the moment the ball is kicked isa. vb. v cos θc. v sin θd. zeroe. 9.82. An airplane flying N30° W at 150 km/h encounters a wind blowing E5 N at 40 km/h. Determine the resultant ground velocity of the plane. Include a vector diagram in your solution.
- An airplane heads due east at 110 m/s through a 25 m/s cross wind blowing from north to south. The resultant velocity of the airplane is a. 112.805 m/s, 12.80° south of east O b. 135 m/s, 12.80° south of east O c. 112.805 m/s, 12.80° east of south O d. 85 m/s, 12.80° south of east If a vector Á has components Ax = -2 and A, = +3, then A lies in the O a. 4th quadrant O b. 1st quadrant O c. 2nd quadrant O d. 3rd quadrantA boy, who can swim at 2.5km/h in still water, wants toswim directly across a riverand land directly North of their starting point.The current in the river of 2.0 km/h [W].a. What direction must the swimmerhead? [E37°N]b. If the river is 150 m wide, how long willit take them to cross the river? [0.10 h]question 9
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