Z. (3) If the ball is projected vertically upwards from the same height and with speed it, it would rebound to a greater height. A (1) only B (3) only C (1) & (2) only D (1) & (3) only E (1), (2) & (3) only 9. A car starts from rest and accelerates uniformly for 10 5. What is the ratio of the distance travelled in the 10 s to the distance travelled in the rst second? A 5 B 10 C 20 D 50 E 100 10. A train moving at 20.0 ms " slows down uniformly to 10.0 ms 4 in 5.0 5. What is the distance travelled by the train in the last second of itsjoumey before it stops? A 1.0m B 3.0m C 6.0m D 9.0 m E 10.0 m 11. A constant external torque I" is applied to a ywheel which is initially at rest. The ywheel attains certain angular speed after 25 3. When the value of the constant external torque is doubled, the ywheel acquires the same angular speed from rest after 10 5. What is the average frictional torque exerted at the bearings of the flywheel? A: B: C: 5 4 3 D2: E: 5 2 12. A particle P of mass 6.0 kg makes a head-on collision with another particle Q of mass 20 kg. The two particles separate after the collision. What is the ratio of change in the speed of P to the change in the speed of Q? A ~1 B l C l 6 3 D 3 E 6 4 SJP02019 13. Fig. 1 shows the displacement-time graphs for two particles A and B