Determining the velocity of an object influenced by a changing acceleration
A. Is easier using energy conservation
B. Can be done using kinematics or conservation with equal difficulty
C. Is easier using kinematics
D. Is impossible
Ans: A. Is easier using energy conservation
You might also like to view...
The Mississippi River delta has widely spaced distributary channels extending long distances into the Gulf of Mexico. This is an example of a(n) ________ delta.
a. estuarine b. bird's-foot c. alluvial d. fluvial e. arcuate
A tractor of mass 
= 2,000 kg is pulling a trailer of mass 
= 5,000 kg. If the tractor-trailer is accelerated at 2.0 
then the tension in the trailer hitch that connects the trailer to the tractor is
A. 6,000 N.
B. 8,000 N.
C. 9,000 N.
D. 10,000 N.
E. 11,000 N.
What can we learn about a star from a life track on an H-R diagram?
A) the star's age B) the surface temperature and luminosity the star will have at each stage of its life C) the star's current stage of life D) how the star's distance from Earth varies at different times in its life
What applied horizontal force will accelerate a 400-kg crate at 1 m/s2 across a factory floor against a friction force half its weight?
A) 600 N B) 1600 N C) 2000 N D) 2400 N E) none of the above