A3.00-kilogram mass is thrown vertically upward
with an initial speed of 9.80 meters per second.
what is the maximum height this object will
reach? [neglect friction.]
(1) 1.00 m (3) 9.80 m
(2) 4.90 m (4) 19.6 m

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2

0.11 m/s and 0.28 m/s should be correct

snell's law

refractve index = sin incidence / sin refraction