What is the speed of a 1 kg mass if it has a kinetic energy of 1 J?

a. 0.45 m/s
b. 1.00 m/s
c. 1.41 m/s
d. 4.40 m/s

In which of the following situations is work not done?

a. a waiter carrying a tray toward a table
b. a truck pulling a trailer along the road
c. a soccer player kicking a ball across the field
d. a powerlifter raising a barbell above his head

If you increase the distance an object moves, what happens to its power?

a. increases
b. decreases
c. no change
d. a change in work only​