Answer:
70 km/h
Explanation:
Let the velocity of car A is v km/h, thus the velocity of car B is (v - 20) km/h.
They meet after 3 hours.
Distance traveled by car A in 3 hours = v x 3 = 3 v
Distance traveled by car B in 3 hours = (v - 20) x 3 = 3v - 60
Total distance traveled is 480 km
So, 3 v + 3 v - 60 = 480
6 v - 60 = 480
6 v = 540
v = 90 km/h
Thus, the speed of car A is 90 km/h and the speed of car B is 90 - 20 = 70 km/h.
Two of Newton's laws, properly combined with geometry and calculus, then mixed, stirred and massaged, produce orbital motion.
==> Law of universal gravitation (gravity)
==> Second law of motion ( F=ma ).
Answer:
Uniform acceleration because the speed is increasing
Answer:
d
Explanation:
i just know (pls check out my question pls i will give nayone who answers brainiest)
I don’t use the metric system, so I used feet and then went back.
25 meters is about 82 feet.
So around 82 feet per minute (kinda slow LOL)
82 (feet per minute) x 90 (minutes) = 7380 feet (in 90 minutes)
7380 feet is equal to 2249.424 meters.
(I hope that helped)