The value of the velocity will be 8 m/sec. Momentum is found as the product of mass and its velocity.
The measurement of mass in motion is called momentum. Momentum is equal to its mass multiplied by its velocity. Mathematically it is given as;
Momentum = Mass x Velocity
The given data in the problem is
tennis ball mass ( m)= 2 Kg
speed of the ball(v) = ? m/s
The original momentum of the body is =16 kg m/s
The velocity is found as;
P=mv
16 =2v
v=8 m/sec
Hence,the value of the velocity will be 8 m/sec.
To learn more about the momentum refer to the link;
https://brainly.com/question/4956182
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