13 marks a speed camera takes two photographs of a car photo 1 - h 0.8m 0.8*9=0 0.72 0.0 the avere m/s is 1.4 photo 2 β , 0.8m photo 2 was taken 0.5 seconds after photo 1. marks on the road are 0.8 metres apart calculate the average speed of the car in m/s.
Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7β3 β5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.