Find the change in the momentum of a 70 kg cyclist if his speed has decreased from 5 to 2 m / s.
| August 14, 2021 | education
Initial data: m (cyclist’s weight) = 70 kg; V (initial speed of the cyclist) = 5 m / s; V1 (final speed of the cyclist) = 2 m / s.
We calculate the change in the cyclist’s impulse using the following formula: ΔP = | m * V1 – m * V | = | m * (V1 – V) |.
Let’s calculate: ΔP = | 70 * (2 – 5) | = 210 kg * m / s.
Answer: The change in the rider’s impulse is 210 kg * m / s.
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.
