The ball is thrown vertically upward at a speed of 56 m / s. At what height will its kinetic energy
| December 21, 2020 | education
The ball is thrown vertically upward at a speed of 56 m / s. At what height will its kinetic energy be 2 times greater than its potential energy?
E (k) = mv ^ 2/2
E (n) = mgh
2E (k) = E (n)
2 * 3136m / 2 = mgh
3136m = mgh
3136 = gh
3136 = 10 * h
h = 3136: 10
h = 313.6
Answer: at an altitude of 313.6 m, the kinetic energy will be twice the potential
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