Two balls of equal mass moving with a relative speed of 25 ms\(^{-1}\) in opposite directions collide. If one of the balls stopped immediately after their collision and the other had a final momentum of 15 kg ms\(^{-1}\), what is the mass of each ball?
A
1020 g
B
850 g
C
600 g
D
1500 g
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
The momentum associated with the relative speed equals the final momentum of the moving ball.
m × 25 = 15
m = \(\frac{15}{25}\) = 0.6 kg = 600g
Source: WAEC / JAMB / NECO Classroom Archive (Record #78303)