The motion of a particle is described by the relation x = t2- 10t + 30, where x is in metres and t in seconds. The total distance travelled by the particle from t = 0 to t = 10 seconds would be

The motion of a particle is described by the relation x = t2- 10t + 30

1.	The motion of a particle is described by the relation x = t2- 10t + 30, where x is in metres and t in seconds. The total distance travelled by the particle from t = 0 to t = 10 seconds would be
A.	zero
B.	30 m
C.	50 m
D.	60 m
E.	none of these.
Answer» B. 30 m