Two water balloons of mass 0.35 kg collide and bounce off of each other
without breaking. before the collision, one water balloon moved at a velocity
of 2.5 m/s east, while the other moved at a velocity of 2.25 m/s west. after
the collision, one balloon moves at a velocity of 1.75 m/s west. what is the
velocity of the other water balloon?
o
a. 2 m/s west
o
b. 0.25 m/s east
o
c. 0.25 m/s west
o
d. 2 m/s east

Option D

2 m/s East

Explanation:

From the law of conservation of momentum, the sum of initial momentum equals the sum of final momentum

Momentum, p=mv where m is the mass and v is the velocity

Since the masses are the same then

Therefore

where and are final velocities of objects while and are the initial velocities respectively

Taking East direction as positive then West as negative and by substitution

Therefore

hence East since it's positive

false br

that would be because of both gravity and friction. so     c