Mathias

The point P,Q and R have co-ordinates. P=(-3,7) Q=(-2,3) and R =(2,2) calculate the length of line PQ

A 3kg block is attached to an ideal spring with a force constant k = 200N/m. The block is given an initial velocity in the positive direction of magnitude u = 12 m/s and no initial displacement (x o = 0). Find (10 marks) a. The amplitude and b. The phase...

1.10Ns 2.100N

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0.25

Just as an added bonus, the final question on the quiz is A and B ;)

Let total number of balls be X Number of red balls = 1/4x Overall total num of balls=X +40 No of red balls = 1/4X +5 1/5(x +40) = 1/4 + 5 Times 20 4x +160 = 5x + 100 5x - 4x = 160 - 100 X = 60 60 balls were there originally Prove Red balls= 1/4 x 60 = 15...

A spring 20cm long is stretched to 25cm by a load of 50N. what will be its length when stretched by 100N assuming that the elastic limit is not reached? k = F 1 / x 1 = 50 / 25 = 2 N/cm

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