6. 7 velocity is yo position-time graph of an object is shown personalseconds, the phil * (m) 20 a) 10 m/s iron b) 20 m/s 10 c) 15 m/s d) -10 m/s A motion diagram of a car moving along a summit road is shown below. Which posix. Versus-time graph matches this motion diagram? 8. In pursuit of a speeding truck, a police car accelerates from rest at a rate of 5 m/s for 10 s. How far will the police car travel within this 10 s.? a) 50 m 25 m 250 m d) 500 m 9. An arrow is launched vertically upward. It moves straight up to a maximum height, then falls to the ground. Which graph best represents the vertical velocity of the arrow as a function of time? Ignore air resistance; the only force acting is gravity. V y (20 loov orly Vy asnoquroo brusix after A a) b) C) d ) 10. An arrow is shot at a target which is 8.84 m away in an angle 30 above the horizontal with an initial speed of 10 m/s. What are the vertical and the horizontal components of the initial velocity? a) Vix = 10cos(30) = 8.66 m/s, Viy = 10sin(30)=5 m/s 6 Vix = 10sin(30) = 5 m/s, Viy= 10cos(30)= 8.66 m/s c) Vix = 10cos(30) = 8.84 m/s, Viy = 10sin(30)= 8.66 m/s d) Vix = 10cos(30) = 8.66 m/s, Viy = 10sin(30)= 9.81 m/s