2. A boy kicks the football of mass 500 g which is initially at rest. It starts moving with a constant velocity of 5 m/s . Calculate:
(a) the kinetic energy of the boy
(b) the work done by the boy
[Ans.(a) 6.25 J. (b) 6.25 ]

mass 500g is converted into kg

500/1000=0.5kg

same 1/2=0.5

Explanation:

are their multiple choices ?

explanation:

colorectal cancer may also develop from areas of abnormal cells in the lining of the colon or rectum. this area of abnormal cells is called dysplasia and is more commonly seen in people with certain inflammatory diseases of the bowel such as crohn's disease or ulcerative colitis.