Thursday

April 24, 2014

April 24, 2014

Posted by **jillian** on Monday, March 29, 2010 at 5:00pm.

- physics -
**Lee**, Thursday, March 28, 2013 at 1:50amm1= 1kg

v1= 1.50 m/s

=====

m2= 0.010kg

v2= 100m/s

=====

m1*v1= 1kg*1.50kg= 1.50kg-m/s

m2*v2= 0.010kg*100m/s= 1.0kg-m/s

=====

mTotal= 1.010kg

Since the bullet is shot in a vertical movement, and the duck was flying horizontally, then we can use Pythagorean to solve for the final velocity(vF).

=====

Velocity in the x-component(vx)

-> (mT)(vx)= momentum of duck.

--> (1.010kg((vx)= 1.50kg-m/s

---> (vx)= (1.50kg-m/s)/(1.010kg-m/s)

----> (vx)= 1.485m/s

....

Velocity in the y-component (vy)

-> (mT)(vy)= 1.0kg-m/s

--> (1.010kg)(vy)= (1.0kg-m/s)

---> (vy)= (1.0kg-m/s)/(1.010kg-m/s)

----> (vy)= (0.99009m/s)

=====

*Now we can use Pythagorean to solve for the final velocity!

-> a^2 + b^2 = c^2

--> (1.485m/s)^2 + (0.99009m/s)^2 = c^2

---> 2.2055m/s + 0.9818m/s = c^2

----> 3.1871m/s = c^2

-----> c = √(3.1871m/s)

------> c = 1.785 m/s!

* Your final velocity is 1.785m/s!

**Related Questions**

physics - A duck flies south at a constant speed of 20 m/s. A man stands 30 ...

physics - while standing on an open truck moving at a velocity of 35m/s, a man ...

Physics - A duck has a mass of 2.8 kg. As the duck paddles, a force of 0.09 N ...

Physics - A duck has a mass of 2.8 kg. As the duck paddles, a force of 0.09 N ...

physics - A duck has a mass of 2.3 kg. As the duck paddles, a force of 0.07 N ...

Physics please help - A duck has a mass of 2.8 kg. As the duck paddles, a force ...

Basic Physics - While standing on an open bed of a truck moving at 35 m/s, and ...

physics - A duck has a mass of 2.9 kg. As the duck paddles, a force of 0.07 N ...

Physics - swimming duck paddles the water with it's feet once every 1.6s, ...

Physics - A duck has a mass of 2.3 kg. As the duck paddles, a force of 0.08 N ...