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3 years ago

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Energy = Force x Distance. Gravitational potential energy = Force (weight) x Height of the object above the ground. If a waterme

lon weighs 98 Newtons and sits on a shelf 10 meters above the floor, how much gravitational potential energy does it have in Joules?

Advanced Placement (AP)

1 answer:

Pani-rosa [81]3 years ago

7 0

Answer: 56 Joules beacuse the answers is 56 Joules this proves that its 98 Newtons

You are welcome

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$V_0=2.7m/s$

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Also, for constant acceleration motion, the average velocity is equal to the sum of final and initial velocities divided by 2 and to the distance divided by the time:

$\dfrac{V(t)+V_0}{2}=\dfrac{d}{t}$

Where you know:

t = 2s

$V(2)=9.8(2)+V_0=19.6+V_0$

d = 25m

Substituting (the units are ommited in the equationn, but added at end of the answer):

$\dfrac{V(2)+V_0}{2}=\dfrac{25}{2}$

$V(2)+V_0=25$

Thus, you have a system of equations:

$V(2)+V_0=25$

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Substituting the second into the first:

$19.6+V_0+V_0=25\\\\19.6+2V_0=25$

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