Ask Question
PhysicsPhysics
30 November, 14:50

An 18-wheeler reaches a speed of 70 mph, then slows to 60 mph. At which speed does it have the least kinetic energy?

+5
Answers (2)
  1. 30 November, 14:57
    0
    At 60 mph. The 18-wheeler is moving slower, so its molecules have less kinetic energy.
  2. 30 November, 18:44
    0
    An object that has motion - whether it is vertical or horizontal motion - has kinetic energy ... This equation reveals that the kinetic energy of an object is directly proportional to the square of its speed. That means that for a twofold increase in speed, the kinetic energy will increase by a factor of four.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “An 18-wheeler reaches a speed of 70 mph, then slows to 60 mph. At which speed does it have the least kinetic energy? ...” in 📙 Physics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
A ball of mass 2.0 kg moves with a velocity of 4.0 m/s. A force of - 6.0 N is applied for 3.0 sec. Find the final velocity.
Answers (1)
A car drives over a hilltop that has a radius of curvature 120 m at the top of the hill. at what speed would the car be traveling when it tires just barely lose contact with the road when the car is at the top of the hill?
Answers (1)
What evidence can you cite for the particle nature of light? 1. Refraction phenomenon of light 2. The many colors of light 3. Diffraction phenomenon of light
Answers (1)
An object of mass 3 kg, moving with and sticks to an object of mass 2.00 kg with an initial velocity of 3.00 m/s. Find the final velocity of the composite object.
Answers (1)
A water skier is pulled by a boat traveling with a constant velocity. Which one of the following statements is false concerning this situation? A. The net vertical force on the skier is zero newtons. B. The net acceleration of the skier is zero m/s2.
Answers (1)
New Questions in Physics
Changing the direction of current will or will not affect the strength of an electromagnet
Answers (2)
A swimming pool has the dimensions of 10 meters, 5 meters, and 1 meter. What is the pool's volume? 50 m 50 m3 50 m2 25 m3
Answers (1)
A child pushes horizontally on a box of mass m which moves with constant speed v across a horizontal floor. The coefficient of friction between the box and the floor is μ. At what rate does the child do work on the box?
Answers (2)
What two qauntities must be known to calculate the density of a sample of matter
Answers (1)
An element's atomic number is 38. How many protons would an atom of this element have?
Answers (1)
Home » Physics » An 18-wheeler reaches a speed of 70 mph, then slows to 60 mph. At which speed does it have the least kinetic energy?
Sign Up Forgot Password?