Bert claims that he can throw a dart at a dartboard from a distance of 2.0 m and hit the 5.0- cm wide bull's eye if he throws the dart horizontally with a speed of 20 m/s. He starts the throw at the same height as the top of the bull's-eye. Will he hit the bull's-eye?
11. What is given in the Problem?
A. dx, vx
B. dy , vx
C. dy, vy
D. dy, vx, 5.0 cm wide bull's eye
12. What is the unknown in the problem?
A. horizontal acceleration ( ax), time (t)
B. vertical acceleration ( ay), t
C. t, dy
D. t, ag
13. What are the formula for the unknown in the above problem?
A. dx = vx.t; ax=0
B. dx = vx.t; ay=0
C. t= dx/ vx; dy = vy.t
D. t= dx/ vx; dy= 1/2 gt ^2
14 How long does the dart to be on the dashboard?
A. .01s
B. .1s
C. 1s
D. 10s
15. What is ay?
A. 9.8 m/s
B. 9.8m/s/s
C. 10 m/s/s
D. 20 m/s/s
16. What is the height hit by the dart in a 5.0 cm wide bull's - eye?
A. .049 cm
B. 0.49 cm
C. 4.9 cm
D. 49cm
17. Did Bert hit the bull's -eye? Why?
A. No , he did not hit it
B. Yes, he did hit it
C. No because he hit beyond the 5.0 cm wide bull's - eye
D.. Yes because he hit the 5.0 cm wide bull's - eye
