Saturday

January 31, 2015

January 31, 2015

Posted by **Isis** on Monday, March 18, 2013 at 6:04pm.

* 2-3 Conservation of Momentum

2) A 3.0 kg ball is moving at 3 m/s and strikes a 1.5 kg ball moving at -2 m/s. After the collision, the 1.5 kg ball moves to the right at 2 m/s. What is the final velocity at 3.0 kg ball?

FORMULA(2)>> m1vi+m2vi= m1vf+m2vf

3) A 85 kg running back is moving at +12 m/s and strikes a 125 kg linebacker moving at -8.0 m/s. What is the final velocity if they stick together?

FORMULA(3)>> m1vi+m2vi= (m1+m2)vf

>>PLEASE HELP ME!!!!!

- physics. -
**bobpursley**, Monday, March 18, 2013 at 6:12pm1. KE=1/2 mass*velocity^2

2, 3: what is your question? you are given the data, and the formula.

**Answer this Question**

**Related Questions**

Physics 11th grade - 1) A racing car has a mass of 1525 kg. What is its kinetic ...

Physics - A bullet with a mass of 55 grams moving with a speed of 100 m/s slams ...

physics - A cart of mass 340 g moving on a frictionless linear air track at an ...

Physics - Bernoulli's equation is an expression of: the conservation of mass the...

physics - A gun is fired vertically into a 1.55 kg block of wood at rest ...

Physics - A 1200 kg car is moving on the freeway at 65 mph. (A) find the ...

physics - A car has a flywheel ( a diks of R=0.2m and uniformly distributed mass...

physics - A racing car has a mass of 1970 kg. The acceleration of gravity is 9.8...

Physics - A racing car has a mass of 1530 kg. The acceleration of gravity is 9.8...

Physics - A racing car has a mass of 1540 kg. What is its kinetic energy if it ...