Because gravity is constant
<span>the only force acting in free-fall is gravity which points downward at 9.8 m/s</span>
From the law of conservation of momentum
m1u1+ m2u2= m1v1+ m2v2
110*8+ 110*-10= 110*-10 + 110* v2
v2= 8 m/sec
Answer: A
Hope this help you!!
C. one complete spin on its axis because the rotation is referring to the planet's period of rotation. D is called a revolution. B determines the seasons on the planets. A is called an ellipse.
A rainbow. Dispersion is the splitting of radiation into it's different wavelengths.
