Answer:
Newton's second law
Newton's second law, which states that the force F acting on a body is equal to the mass m of the body multiplied by the acceleration a of its centre of mass, F = ma, is the basic equation of motion in classical mechanics.
Explanation:
I believe the answer would be B.
Momentum = mass × speed
p = (30 kg) (3 m/s)
p = 90 kg m/s
64.5 cm
30 * 80 + x * 110 = 50* 190 => x = 64.5
B
;)
