A particle intially moving with a velocity 5m/s2 among -ve X direction. Its acceleration is along the -ve X axis. It is equal to 2m/s2.After 2s its acceleration is same in magnatitude but along the +ve X axis. Find its velocity and displacement after 10s of motion express the in terms of unit vectors

answer carbon and three oxygen atoms;

answer;

18.5 seconds

explanation;

velocity is distance covered per unit time; it is given by displacement divided by time.

thus; time = displacement/velocity

total time = total displacement/velocity

total distance = 5000 meters south

total time = 5000/4.5

                  = 1111.11 seconds

but; 1 minute = 60 sec

thus; 1111.11 /60

                = 18.51 seconds

thus; the time taken is 18.5 seconds