The velocity of a bullet is reduced from 200 m/s to 100 m/s while travelling through a wooden block of thickness 10 cm. The retardation is _______.
A. -2 m/s²
B. 15 x 10² m/s²
C. 15 x 104 m/s²
D. 2 m/s²
Answer:C
The velocity of a bullet is reduced from 200 m/s to 100 m/s while travelling through a wooden block of thickness 10 cm. The retardation is _______.
A. -2 m/s² B. 15 x 10² m/s² C. 15 x 104 m/s² D. 2 m/s²