Question

NEED ANSWER ASAP PLZZZ HURRY!!!! The acceleration due to gravity (g) = 9.8m/s^2 Using the equation PE (potential energy) = m*g*h, calculate the potential energy of an object if it has mass (m) = 15 kg, and is a height (h) = 26 m above the ground. Enter your answer in the box.

Answer 1

You can use the third equation of motion for a constant acceleration, namely:

u2+2gh=v2u2+2gh=v2

Where, uu is the initial velocity, vv is the final velocity, gg is the acceleration due to gravity, and hh is the vertical distance travelled.

If I take g=10ms2g=10ms2 and h=8mh=8m, and my initial velocity uu as zero, then the value of vv comes out to be

v=12.56m

Answer 2

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