# •A dart leaves the barrel of a blowgun at a speed v. The

Chapter 3, Problem 6P

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QUESTION:

A dart leaves the barrel of a blowgun at a speed $$v$$. The length of the blowgun barrel is $$L$$. Assume that the acceleration of the dart in the barrel is uniform.

a. Show that the dart moves inside the barrel for a time of $$2L/v$$.

b. If the dart’s exit speed is 15.0 m/s and the length of the blowgun is 1.4 m, show that the time the dart is in the barrel is 0.19 s.

QUESTION:

A dart leaves the barrel of a blowgun at a speed $$v$$. The length of the blowgun barrel is $$L$$. Assume that the acceleration of the dart in the barrel is uniform.

a. Show that the dart moves inside the barrel for a time of $$2L/v$$.

b. If the dart’s exit speed is 15.0 m/s and the length of the blowgun is 1.4 m, show that the time the dart is in the barrel is 0.19 s.

Step 1 of 3

Given data:

The speed of the dart is v.

The length of the blowgun barrel is L.

The dart is moving with uniform acceleration.