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Marat540 [252]
3 years ago
15

Type the correct answer in each box. Round your answers to the nearest hundredth.

Physics
1 answer:
sergey [27]3 years ago
7 0

Hi there!

\large\boxed{PE = 7.35 J, \text{ }v \approx 3.13 m/s}

To find the potential energy of the ball at B, we can use the equation:

PE = mgh

Plug the given gravity, mass, and height:

PE = (1.5)(0.5)(9.8) = 7.35 J

At A, all of this potential energy is changed to kinetic energy, so we can use the following equation:

v = √2KE/m

Plug in the solved for energy and mass:

v = √2(7.35)/1.5

Solve:

v ≈ 3.13 m/s

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