Body m = 2kg, thrown vertically upwards after a while kinetic energy = 9 joules. determine the speed of the body.
| July 26, 2021 | education
To determine the speed of a thrown body at a certain moment of time, we use the formula: Ek = m * V ^ 2/2, whence we express: V = √ (2 * Ek / m).
Variables: Ek – kinetic energy of the thrown body (Ek = 9 J); m – mass (m = 2 kg).
Calculation: V = √ (2 * Ek / m) = √ (2 * 9/2) = 3 m / s.
Answer: At some point in time, the thrown body had a speed of 3 m / s.
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