Average velocity of car= 100 km/h south.
Explanation:
displacement of car=- 200 km (negative because car is moving south)
time= 2 hours
average velocity= Total displacement/ total time
average velocity=-200/2
average velocity= -100 km/h
thus the average velocity of car is 100 km/h south
Answer:
The sum of the initial and final velocity is divided by 2 to find the average.
Explanation:
The formula is V=Displacement/Time
First of all, it depends on how far away the spaceship is from both objects, and the SPEED of the ship. if it is closer to the moon, the gravity might be equal for each of the objects.
Answer:
B. a
Explanation:
(1,3): x-intercept=1; y-intercept=3
(3,5): x-intercept=3, y-intercept=5
x-intercept: horizontal (bottom) line x
y-intercept: vertical line y
The acceleration of gravity on or near the Earth's surface is 9.8 m/s² downward.
Is that right ? I don't hear any objection, so I'll assume that it is.
That means that during every second that gravity is the only force on an object,
the object either gains 9.8m/s of downward speed, or it loses 9.8m/s of upward
speed. (The same thing.)
If the rock starts out going up at 14.2 m/s, and loses 9.8 m/s of upward speed
every second, it runs out of upward gas in (14.2/9.8) = <em>1.449 seconds</em> (rounded)
At that point, since it has no more upward speed, it can't go any higher. Right ?
(crickets . . .)