Answer:
Momentum of the skier is 350 Kg.m/sec
Explanation:
Momentum of a body can be calculated using the following rule:
P = m * v
where:
P is the momentum of the body
m is the mass of the body given as 70 Kg
v is the velocity of the body given as 5 m/sec
Substitute with the givens in the above rule to get the momentum of the skier as follows:
P = m * v
P = 70 * 5
P = 350 Kg.m/sec
Hope this helps :)