Yuto Yuto
  • 02-08-2024
  • Physics
College

At what speed does a 1400 compact car have the same kinetic energy as a 20000 truck going 25 ?

Express your answer using two significant figures.

Answer :

UncleTom UncleTom
  • 10-05-2025
K=1400*V^2/2
K=20000*25^2/2. => 1400*V^2/2=20000*25^2/2 <=> 1400*V^2=20000*25^2
14*V^2=200*225
v^2=100*225/7
v=250/7^(1/2)

Answer: 250*7^(1/2)/7
Answer Link

Other Questions

What does uranium 235 decay into? A. Lead 206 B. Lead 235
A survey question that requires a yes or no answer is called
1. A sum is the answer to an addition problem. 2. Addends
Select five numbers that have 2, 5, and 11 as prime factors.
Resistors with values of 4 ohms and 6 ohms are connected in
Working 22 hours in the second week of June, Xenia was able
Mia has two ribbons. One is 60 cm long and the other
Cut a 2-yard spool into 5 equal lengths of ribbon. How long
The chain of the Hawaiian Islands can be used to calculate the
A car company created a 90-second commercial and purchased enough air time
15. A floral piece not usually purchased on the basis of strong
Water boils at 100 degrees Celsius and freezes at 0 degrees Celsius.
A rectangular beam, 100 mm wide and 380 mm deep, is subjected
Un cubo tiene un área total de 25, 312 pulgadas cuadradas. ¿Cuál
1. Convert 73 degrees Celsius to the Kelvin scale. 2. What should