Question

Hi, please provide the correct answer ASAP.

A bead of mass m = 7.30 kg is released from point A and slides on the frictionless track as shown in the figure below. The height of A is ha = 5.90 m. 3:20 2.00 m (a) Determine the bead's speed at points B and C. point B 10.75 Your response differs from the correct answer by more than 10%. Double check your calculations. m/s m/s point C (b) Determine the net work done by the force of gravity in moving the bead from A to C.

This is all 1 question (3 sub-questions). please answer it completely (all 3 parts).

much appreciated,

Thanks! ? ?

Answer 1

a)

velocity at B.

0.5 m vb^2 = m g ( h2 - h1)

0.5* vb^2 = 9.8* ( 5.9 - 3.2)

vb = 7.275 m/s

velocity at C

0.5 vc^2 = 9.8* ( 5.9 - 2)

vc = 8.743 m/s.

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b)

W = mg ( ha - hc) = 7.3* 9.8* ( 5.9 - 2) = 279 J

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