Runner A because they completed it in a less amount of time
The momentum of truck is 20790 kg m/s
<em><u>Solution:</u></em>
Given that we have to find the momentum of truck
From given, 1155 kg truck has a velocity of 18 m/s
Therefore,
Mass = 1155 kg
Velocity = 18 m/s
<em><u>The momentum is given by formula:</u></em>

Where, m is mass in kg and v is velocity in m/s
Substituting the values we get,

Thus momentum of truck is 20790 kg m/s
They did not believed Galileo's discoveries because religiouse reasons the preast said that all the bible is true but Galileo despised it.
Answer:
The sky would be in a sphere shape because of the shape of the atmosphere and the shape of the earth