Answer to Question #90487 in Molecular Physics | Thermodynamics for alejandro

Question

An impulse of 10 kilogram-meter per second acting on an object whose mass is 5 kilogram will cause a change in the objects velocity of: find the solution

Answer 1

Impulse acting on an object is the change in momentum of an object

$$\Delta p=\Delta \left( mv \right)$$

Since the mass m does not change, then impulse of object is

$$\Delta p=m\Delta v$$

Dividing both sides of the equation by m, we get the change in velocity

$$\Delta v=\frac{\Delta p}{m}$$

Substituting $\Delta p=10\text{ }kg\text{-}meter\text{ }per\text{ }second$ and $m=5\text{ }kg$ we get change in the objects velocity

$$\Delta v=\frac{10\,\,kg\text{-}meter\text{ }per\text{ }second}{5\,kg}=2\,meter\text{ }per\text{ }second$$