We can use 3rd equation of motion to find the velocity of the stone just before it strikes the ground.
Height = S = 318 meters
Acceleration = a= 9.8 m/s²
Initial velocity = u = 0
Final velocity = v = ?
According to the 3rd equation of motion:
2aS = v² - u²
2(9.8)(318)=v²
v²=6232.8
⇒
v = 78.95 m/s
So, the velocity rounded of to nearest integer will be 79 meters per second.
Thus, C option is the correct answer
It would be 2300000 grams.
7). Stopping is an acceleration.
2nd law . . . . . f = m a
Bigger mass needs more force.
Bowling ball has more mass than a golf ball.
9). 2nd law . . . . . f = m a
It doesn't say anything about where the force comes from,
only the size of the force. A child, dog, bird, adult, or
tow-truck have to use the same amount of force to produce
the same result.
10). 2nd law . . . . . f = m a
More acceleration requires more force.
voting, serving on juries, paying taxes, etc
Answer: 0.081 kilogram/cubic meter
Explanation: p=m/v so 104/1278 is 0.081377151799687 or 0.081.