A particle is moving with constant acceleration in a straight line. It passes through three points, A, B and C with speeds 20ms^-1, 30ms^-1 and 45ms^-1 respectively. The time taken to move from A to B is t1 seconds and the time taken to move from B to C is t2 seconds.
a) Show that t1/t2 = 2/3
Given also that the total time taken for the particle to move from A to C is 50s,
b) find the distance between A + B.

Thanksssssssssssssssss + please explain how to do it !

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