7 I the work done on an object results in a change in only t

7. I the work done on an object results in a change in only the objects speed and if the net work is negative,

a. the object speeds up and work is done by the object on another object.

b. the object speeds up and the net force does work on the object.

c. the object slows down and work is done by the object on another object.

d. the object slows down and the net force does work on the object

Solution

if work done is negetive it means it\'s finall KE is less than it;s initial KE which means it;s final speed is less than it\'s initial speed hence object slows down &net force does work on the object