Answer:
, 6.1 s
Explanation:
The motion of the dropped penny is a uniformly accelerated motion, with constant acceleration
towards the ground. If the penny is dropped from a height of
the vertical position of the penny at time t is given by the equation
where the negative sign is due to the fact that the direction of the acceleration is downward.
We want to know the time t at which the penny reaches the ground, which means h(t)=0. Substituting into the equation, it becomes
And re-arranging it, we find an expression for the time t:
And substituting the numbers, we can also find the numerical value:
Answer:
The answer is 80 m/s
Explanation:
You divide 240 by 3 since your force is 240N, then 3 is your mass, so divide and get 80
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<span>Fusion produces large amounts of energy, and the fuel is found on Earth.</span>