1.

A particle moving along a straight line with uniform acceleration, passes successively through three points A, B, C. If t1 = time taken to go from A to B; t2 = time taken to go from B to C and AB = a, BC = b, then what is the value of acceleration?

A. 2(bt<sub>1</sub> at<sub>2</sub>)/t<sub>1</sub>t<sub>2</sub>(t<sub>1</sub> + t<sub>2</sub>)
B. -2(bt<sub>1</sub> at<sub>2</sub>)/t<sub>1</sub>t<sub>2</sub>(t<sub>1</sub> + t<sub>2</sub>)
C. 2(bt<sub>1</sub> + at<sub>2</sub>)/t<sub>1</sub>t<sub>2</sub>(t<sub>1</sub> + t<sub>2</sub>)
D. 2(bt<sub>1</sub> at<sub>2</sub>)/t<sub>1</sub>t<sub>2</sub>(t<sub>1</sub> t<sub>2</sub>)
Answer» B. -2(bt<sub>1</sub> at<sub>2</sub>)/t<sub>1</sub>t<sub>2</sub>(t<sub>1</sub> + t<sub>2</sub>)


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