Question

Once the 2,500-m swim is completed, Sarah [mass mCh = 42 kg] wants to impress Sasha...

Once the 2,500-m swim is completed, Sarah [mass mCh = 42 kg] wants to impress Sasha [mC = 34 kg] and jumps off the 10-m platform. Sarah jumps upwards and reaches the maximum height of 2.5-m above the platform before turning around and falling towards the water. We only consider the motion along the vertical.

a) Find the velocity [vector] of Sarah as she jumps off the spring board.

b) Find the velocity [vector!] of Sarah as she hits the water surface.

c) How long is Sarah in the air?

d) Sarah then plunges into the water and reaches the maximum depth 4.6-m [15 ft] below the surface. What is the (average) magnitude of the deceleration of Sarah while he is submerged in water.

e) What is the (average) force that the water exerts on Sarah as she is submerged in the water?

No diagram given. See first question submitted, this is a follow up.

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