A0.10-kg ball, traveling horizontally at 25 m/s, strikes a wall and rebounds at 19 m/s. what is the 7) magnitude of the change in the momentum of the ball during the rebound?
a) 4.4 kg. m/s
b) 72 kg m/s
c) 1.2 kg. m/s
d) 1.8 kg m/s
e) 5.4 kg. m/s

Change in momentum will be -4.4 kgm/sec

So option (A) is correct option

Explanation:

Mass of the ball is given m = 0.10 kg

Initial velocity of ball

And velocity after rebound

We have to find the change in momentum

So change in momentum is equal to ( here negative sign shows only direction )

So option (A) will be correct answer

hi there!

out of the two, (b) precision would be more reasonable.   however, both a and b could be pretty reasonable.

-awesomerepublic   : )