Answered

Explore Westonci.ca, the premier Q&A site that helps you find precise answers to your questions, no matter the topic. Explore our Q&A platform to find in-depth answers from a wide range of experts in different fields. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

The kinetic energy (in joules) of a moving object can be calculated from the expression 1/2mv^2, where m is the mass of the object in kilograms and v is its speed in meters per second. Find the kinetic energy of a 0.145 - kg baseball that is thrown at a speed of 40 meters per second. E= ? Joules

Sagot :

Kirbymaster63
1/2×0.145×40²
1/2×0.145×1600
1/2×232
232/2
116 Joules
JeanaShupp

Answer: [tex]116\text{ joules}[/tex]


Step-by-step explanation:

Given: Mass of baseball=0.145 kg

Speed of baseball=40 meters per second

Also it is given that The kinetic energy (in joules) of a moving object can be calculated from the expression [tex]\frac{1}{2}mv^2[/tex] , where 'm' is the mass of the object in kilograms and 'v' is its speed in meters per second.

Thus, the kinetic energy of baseball=[tex]\frac{1}{2}(0.145)(40)^2[/tex]

[tex]\frac{1}{2}(0.145)(1600)=116\text{ joules}[/tex]

We appreciate your visit. Hopefully, the answers you found were beneficial. Don't hesitate to come back for more information. Thank you for visiting. Our goal is to provide the most accurate answers for all your informational needs. Come back soon. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.