Fig. 2.1 illustrates the horizontal forces acting on an ice skater who is moving forwards. Diagram labels: ice skater; backward force = 45 N; forward force = 80 N; skate; edge of skate in contact with the ice.
(a)[2]
Calculate the resultant horizontal force on the ice skater. State the direction of the resultant force.
(b)[3]
Calculate the pressure on the ice surface caused by the skate. Give your answer to two significant figures.
(c)[3]
Calculate the mass of the ice skater. Give your answer to two significant figures.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “35 N.” …