S9. during unidirectional motion, the displacemet and distar travelled by a partice wih uniferm acceleration is (a) different (b) same (d) none of these (c)vari

s9. During unidirectional motion, the displacemet and distar travelled by a partice wih uniferm acceleration is (A) different (B) same (D) None of these (C)variahle 60. What is the initial velocity of an object which travels a distance of 1or+15t+5 along a straight line in time r? (A)-10 (B)+10 C)-15 (D)+15 clo 61. At zero acceleration a particle moves along a straight linc. What is the velocity of particle at the position of z =f - 202 +42 2 (A) +48.68 m'sec (B)-48.68 m/sec (C)+42 m/sec (D)-42 m/sec 62. What is the length of a train which crosses 'a bridge of 150 m in 20 sec. with a speed of 40 km/h? (A) 222 m (B) 150 m (C) 72.2 m (D) 70.5 m 63. Point, where the total volume of the body body is assumed to be concentrated is : (A) Centre of arca (C) Centroid of mass (B) Centroid of volume (D) All of the mentioned XEH-3MAT)