The change in kinetic energy of the system is 200 J
Kinetic energy is the energy that an object possesses as a result of its motion.
It is given by:
Kinetic energy = (1/2)m[v - u]²
Where m is the mass of the object, v is the final velocity and u is the initial velocity.
Given that m = 16 kg, v = 20 m/s, u = 25 m/s, hence:
Kinetic energy = (1/2) * 16 * (20 - 25)² = 200 J
The change in kinetic energy of the system is 200 J
Find out more at: brainly.com/question/12669551
Answer:
p=18
Step-by-step explanation:
It is 18 because 5 times 18 will equal 90 and 90 +54 is 144
36 miles is equal to 1 hour ( 60 minutes)
Do a ratio,,
36 : 60
87 : ?
To work out the unknown ratio, do 60/ 36 and then multiply by 87 to get
145 minutes. To convert that into hours you would get 2 hours and 25 minutes
Add that on to 07 00
He would get there at 09 25
Hope this helps! Any questions let me know :)
