Question

(a)What is the momentum of a garbage truck that is 1.20×10⁴kg and is moving at 10.0m/s?
(b)At what speed would an 8 kg trash can have the same momentum as the truck?​

Answer 1

$)</p><p></p><p>p=mv=1.2\cdot10^4\ kg\cdot10\ \dfrac{m}{s}=1.2\cdot10^5\ \dfrac{kgm}{s}.p=mv=1.2⋅104 kg⋅10 sm=1.2⋅105 skgm.</p><p></p><p>2)</p><p></p><p>v=\dfrac{p}{m}=\dfrac{1.2\cdot10^5\ \dfrac{kgm}{s}}{8\ kg}=1.5\cdot10^4\ \dfrac{m}{s}.v=mp=8 kg1.2⋅105 skgm=1.5⋅104 sm.$

Answer 2

a)

THE EXPRESSION FOR MOMENTUM IS

p= mv

INSERTING VALUES IN THE ABOVE EQUATION

P= ( 1.20X 10^4 kg) (10.0m/s)

12x10^4 kg. m/s

B)

15.0 kilometers per second

15.0 kilometers per secondAnd so it's gonna be the momentum of the truck divided by 8.00 kilograms which works out to 15.0 kilometers per second in order for the trash can to have the same momentum as the truck.