We appreciate your visit to Which runner has greater kinetic energy a 45 kg runner moving at a speed of 7 m s or a 93 kg runner moving at. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer :
Kinetic Energy = (1/2) (mass) (speed)
First runner: KE = (1/2) (45kg) (49 m/s) = 1,102.5 Joules
Second runner: KE = (1/2) (93kg) (9 m/s) = 418.5 Joules
The first runner has 163% more kinetic energy than the second runner has.
Thanks for taking the time to read Which runner has greater kinetic energy a 45 kg runner moving at a speed of 7 m s or a 93 kg runner moving at. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!
- Why do Businesses Exist Why does Starbucks Exist What Service does Starbucks Provide Really what is their product.
- The pattern of numbers below is an arithmetic sequence tex 14 24 34 44 54 ldots tex Which statement describes the recursive function used to..
- Morgan felt the need to streamline Edison Electric What changes did Morgan make.
Rewritten by : Barada
Final answer:
The 45 kg runner moving at 7 m/s has greater kinetic energy (1575.5 joules) compared to the 93 kg runner moving at 3 m/s (418.5 joules), as calculated by the kinetic energy formula, KE = ½ mv2.
Explanation:
To determine which runner has greater kinetic energy, we need to use the kinetic energy formula: KE = ½ mv2, where m is the mass in kilograms and v is the speed in meters per second.
For the 45 kg runner moving at 7 m/s, the kinetic energy is:
KE = ½ × 45 kg × (7 m/s)2
= ½ × 45 kg × 49 m2/s2
= 1,575.5 joules
For the 93 kg runner moving at 3 m/s, the kinetic energy is:
KE = ½ × 93 kg × (3 m/s)2
= ½ × 93 kg × 9 m2/s2
= 418.5 joules
Comparing these two values, the 45 kg runner has the greater kinetic energy.
