J jdb New member Jun 10, 2009 #1 In deep space (no gravity), the bolt (arrow) of a crossbow accelerates at 205 m/s^2. What speed will the bolt have attained 2.9s after leaving the crossbow? How far will the bolt have traveled during the 2.9s?
In deep space (no gravity), the bolt (arrow) of a crossbow accelerates at 205 m/s^2. What speed will the bolt have attained 2.9s after leaving the crossbow? How far will the bolt have traveled during the 2.9s?
I [email protected] New member Jun 10, 2009 #2 v = v_init + acc * time acc = 205 m/s^2 time = 2.9 sec v_init = 0 v = (205 m/s^2) (2.9 sec) = 594.5 m/s The bolt will have traveled (1/2)(205 m/s^2) (2.9 sec) ^2 = 862.03 m.
v = v_init + acc * time acc = 205 m/s^2 time = 2.9 sec v_init = 0 v = (205 m/s^2) (2.9 sec) = 594.5 m/s The bolt will have traveled (1/2)(205 m/s^2) (2.9 sec) ^2 = 862.03 m.
