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Consider the 65 kg ice skater being pushed by two other skaters in the figure shown. Include units as appropriate below.

In part (a) we found the magnitude of Fu and the angle of the ice skater being pushed by two other skaters.

(b) What is her initial acceleration if she is initially stationary and wearing steel-bladed skates that point in the direction of F? (Refer to data given in Table 5.1 in Urone).

a₁-

(c) What would instead be her acceleration if she was already moving in the direction of F?

The terminal speed of a person falling in air depends on their mass and the area they present to the air (their cross-sectional surface area). Find the terminal speed of a skydiver of mass 65 kg

falling in a head-down position through air (their drag coefficient = 0.70, and Per-1.21 kg/m³) with a cross-sectional surface area of 0.12 m². Include units as appropriate.

U=

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