A technician pushes a 50-lb box 4 feet in 2 seconds. The rate of ...

[pragya sharda]

A technician pushes a 50-lb box 4 feet in 2 seconds. The rate of work is:
 
  A) 50 lb. B) 50 lb  4 ft = 200 ft-lb.
  C) 4 ft-lb. D) 200 ft-lb/2 s= 100 ft-lb/s.

Question 2

Kinetic energy is:
 
  A) Purely theoretical.
  B) Stored energy.
  C) Energy in motion.
  D) An energy source with promise that has not found practical application.

[katheyjon]

Answer to Question 1

D

Answer to Question 2

C

[pragya sharda]

Thank you!

[katheyjon]

Always glad to help...