A) total time taken for journey
b) the acceleration during the first part of the journey

Explanation:

a. the total time taken for the journey is 50sec.

b. u=0, v=10m/sec, t=20sec.

a=(v-u)/t = (10-0)/20 = 10/20 = 0.5 m/s².

hope this helps you to solve the problem.

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.

d) physical means can be used to separate the components of air.