At an altitude, a body weighing 200 g has a potential energy of 98 J?

Initial data: m (weight of the body in question) = 200 g (0.2 kg); En (potential energy possessed by the body) = 98 J.

Reference data: g (acceleration due to gravity) = 9.8 m / s2.

The height at which the body under consideration should be located can be expressed from the formula: En = m * g * h, whence h = En / (m * g).

Calculation: h = 98 / (0.2 * 9.8) = 50 m.

Answer: The body should be at a height of 50 meters.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.