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Q2) A homogenous door weighing 225 N is supported on a smooth track by frictionless rollers A and B. The centre line of each roller is 125 cm on either side of the doors centre of gravity marked, by the letter G and a force of 10 N is applied 100 cm above the horizontal datum of G as shown in Fig. Q2.

Calculate each of the following

a) The velocity of the door 5 seconds after starting from rest; (6)

b) The support reactions at roller A and roller B. (10)