Question

Here, initial veloaty? 200 m) S
(-) signdenotes retardation.

# 9. The velocity of bullet is reduced from 200 m/s to 100 m/s while travelling through a wooden block of thickness of 10 cm. The retardation assuming to be uniform, will be: (1) 15 x 104 m/s2 (2) 13.5 x 104 m/s2 (3) 12 x 104 m/s2 (4) None of these

Solution