A boy moves on a skateboard at aconstant velocity of m.s .The combined mass of the and the skateboard is 40g.
Is there a question here?
To calculate the momentum of the boy and the skateboard, we need to multiply the velocity by the combined mass.
1. Convert the mass of the boy and the skateboard to kilograms:
- Given the combined mass is 40g.
- To convert grams to kilograms, divide by 1000.
- Therefore, the combined mass is 0.04 kg (40g / 1000).
2. Use the formula for momentum:
Momentum (p) = mass (m) × velocity (v).
3. Given that the velocity is constant at m/s, we can substitute the values:
Momentum (p) = 0.04 kg × m/s.
Therefore, the momentum of the boy and the skateboard is 0.04 kg × m/s.