Answer:
i think that it is oil
Step-by-step explanation:
because it does not change
Divide the speed value by 1.609,
1kilometer per hr=0.621mph
80kph=49.7097Mph
Answer:
6.21 seconds
Step-by-step explanation:
The position function of a free-falling object is,

Where,
= initial height of the object,
= initial velocity of the object,
Here,


Hence, the height of the ball after t seconds,

When s(t) = 0,




∵ Time cannot be negative,
Hence, after 6.21 seconds the ball will reach the ground.
Answer:
9656.06 meters
Step-by-step explanation:
Answer:
Step-by-step explanation: