Evaluate the gravitational potential energy between two 5.00-kg spherical steel balls separated by a center-tocenter distance of 15.0 cm. (b) Assuming that they are both initially at rest relative to each other in deep space, use conservation of energy to find how fast will they be traveling upon impact. Each sphere has a radius of 5.10 cm.

Question

Eve Singleton

Physics

3 April, 18:09

Evaluate the gravitational potential energy between two 5.00-kg spherical steel balls separated by a center-tocenter distance of 15.0 cm. (b) Assuming that they are both initially at rest relative to each other in deep space, use conservation of energy to find how fast will they be traveling upon impact. Each sphere has a radius of 5.10 cm.

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Answers (1)

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Darien Irwin · Answer 1

U = 8.30*10-⁹J

Explanation:

m1 = m2 = 5.00kg masses of the spheres

d = 15.0cm = 15*10-²m

r = 5.10cm = 5.10*10-²m

R = d + r = 15*10-² + 5.10*10-²

R = 20.10 * 10-²m = 0.201m

G = 6.67*10-¹¹Nm²/kg²

U = Gm1*m2/R = potential energybetween the spheres

U = 6.67*10-¹¹*5.00*5.00/0.201

U = 8.30*10-⁹J