Final answer:
The momentum of a biker with a mass of 70 kg moving at a constant velocity of 5 m/s is 350 kg·m/s, calculated using the formula p = mv.
Step-by-step explanation:
The biker's momentum can be determined by using the formula for linear momentum, which is the product of mass and velocity. The formula is p = mv, where p stands for momentum, m is mass, and v is velocity. Given that the biker has a mass of 70 kg and is moving with a constant velocity of 5 m/s, the calculation would be as follows:
p = mv
p = 70 kg × 5 m/s
p = 350 kg·m/s
Therefore, the biker's momentum is 350 kg·m/s.