Answer: The correct answer is 735 kg m/s.
Explanation:
The expression of the momentum in terms of mass and velocity is as follows;
p=mv .........(1)
Here, m is the mass of the object and v is the velocity.
It is given in the problem that Rita is riding a 7.0 kilogram bike at a velocity of 15 meters/second. Rita’s mass is 42 kilograms.
Calculate the total mass, M (Mass of the bike and mass of Rita).
M= 7 kg + 42 kg
M= 49 kg
Calculate the momentum.
Put m= 49 kg and v= 15 m/s in the equation (1).
p=(49)(15)
p= 735 kg m/s
Therefore, the momentum of the speedboat is 735 kg m/s.
