Final answer:
The momentum of a 35kg object moving at 15m/s is 525 kg·m/s. In the given elastic collision, the momentum of the second object after the collision would be 50 kg·m/s, due to conservation of momentum.
Step-by-step explanation:
To calculate the momentum of a 35kg object traveling at 15m/s, you would use the equation for momentum, which is p = mv, where p is momentum, m is mass, and v is velocity. Plugging in the given values, the momentum p is 35kg × 15m/s, which equals 525 kg·m/s.
With regards to the given problem on elastic collision, we know that in such collisions, total momentum is conserved. If the momentum of the first object changes from 25 kg·m/s to 10 kg·m/s, this means it has lost 15 kg·m/s of momentum. This lost momentum must have been transferred to the second object, due to conservation of momentum. The second object initially had a momentum of 35 kg·m/s. Thus, the final momentum of the second object is 35 kg·m/s + 15 kg·m/s = 50 kg·m/s.