An arrow is shot at a target 20 m away. The arrow is shot with a horizontal velocity of 60 m/s. How long is the arrow in the air for, and how far does the arrow drop as it approaches the target?

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Answer 1 · 2015-11-28T23:33:36

(a).

#0.33"s"#

(b).

#0.53"m"#

#(a).#

The horizontal component of velocity is constant so we can say:

#t=s/v=20/60=0.33"s"#

#(b).#

Now we use the vertical component of the arrow's motion:

#s=1/2"g"t^2#

#:.s=0.5xx9.8xx0.33^2#

#s=0.53"m"#