Friday

July 25, 2014

July 25, 2014

Posted by **sam** on Saturday, June 28, 2014 at 6:14pm.

I calculated the acceleration and got <-3,-7,0>

what is the equation to find the rate of change of momentum of the ball?

- physics -
**Damon**, Saturday, June 28, 2014 at 6:36pmForce = rate of change of momentum = m a if mass is constant

(7.88 - 8)/.04 = -3

(-5.28+5) /.04 = -7

(0 - 0 ) = 0

so yes

m a = .140 (do it in kg) * that a vector

- physics -
**Damon**, Saturday, June 28, 2014 at 6:38pmBy the way, Newton 2 is

force = rate of change of momentum

F = m A is the simple version but will not work if mass is not constant (rocket or special relativity for example)

**Related Questions**

biology - Given the part of the molecule shown below, can the underlined atom ...

Grade 12 Calculus - Evaluate each of the following. Show all your calculations...

calculus (gr 12) - Evaluate each of the following. Show all your calculations. a...

calculus (gr 12) - Evaluate each of the following. Show all your calculations. a...

physics - Four charges −8 × 10^−9 C at (0 m, 0 m), −7 × 10^&#...

calculus - Find an equation for the surface consisting of all points P(x, y, z) ...

Calc - Recall that the average velocity between times t1and t2 is calculated ...

Calculus - Recall that the average velocity between times t1and t2 is calculated...

chemistry - For which of these elements would the electron affinity process ...

chemistry - For which of these elements would the electron affinity process ...