Asked Dec 17, 2019

A certain truck has twice the mass of a car. Both are moving at
the same speed. If the kinetic energy of the truck is K, what is the
kinetic energy of the car? (a) K/4 (b) K/2 (c) 0.71K (d) K (e) 2K


Expert Answer

Step 1

Formula for the kinetic energy is:

Step 2

Using the expression of the kinetic energy the kinetic energy of car and truck is related as:

Step 3

Speed is same and mass of the truck is tw...


Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in



Related Physics Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: Drop a stone from the top of a high cliff. Identify the system wherein the net momentum is zero as t...

A: Click to see the answer


Q: A racing car starts from rest and reaches a final speed v in atime t. If the acceleration of the car...

A: a)The car travelled distance is equal to the average speed times of time that is vavgt but not equal...


Q: A river has a steady speed of 0.500 m/s. A student swimsupstream a distance of 1.00 km and swims bac...

A: Let vs be the students speed in still water, vw be the speed of water, s be the distance travelled, ...


Q: Only a small amount of the energy used in an incandescent light bulb (regular bulbs commonly used in...

A: It is true that only small amount of incandescent light is actually converted into light the rest of...


Q: Why is it difficult for a firefighter to hold the hose that ejects large amounts of water at a high ...

A: Water leaves at very high speed from the hose which is used by the firefighters. But as soon as the ...


Q: A steam catapult launches a jet aircraft from the aircraft carrierJohn C. Stennis, giving it a speed...

A: Steam catapult starts from rest, so its initial speed is vi=0ms-1.The catapult reaches to the final ...


Q: In 2015, the U.S. national debt was about $18 trillion.(a) If payments were made at the rate of $1 0...

A: Click to see the answer


Q: A dockworker loading crates on a ship finds that a 20.0-kgcrate, initially at rest on a horizontal s...

A: Let the mass of the crate be denoted by m. Let the coefficient of static friction be denoted by μs a...


Q: 6. In a double slit experiment (assuming the light from each slit spreads uniformly over the screen)...

A: Given:Wavelength = 500 nmDistance between the screen and slit = 1 mDistance between the slits = 0.1 ...