Question

A driver at Dewaan Motors is testing a new model car with a speedometer calibrated to read m/s rather than km/h. The following series of speedometer readings was obtained during a test run along a long, straight road:



Time (s) 0 1 3 5 7 9 11 13 15 17 19

Speed (m/s) 0 0 4 7 10 13 17 22 23 26 29



(a) Compute the average acceleration during each 2-s interval. Is the acceleration constant? Is it

constant during any part of the test run?

(b) Make a (v-t) graph of the data, using scales of 1cm = 1s horizontally and 1cm = 2m/s

vertically. Draw a smooth curve through the plotted points. By measuring the slope of your

curve, find the instantaneous acceleration at t = 6 s, 18 s, and 25 s.

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Answer 1

Answer:

7 On 1-4-2013, Brij and Nandan entered into partnership to construct toilets

government schools in the remote areas of Uttarakhand. They contributed

capitals of 10,00,000 and 15,00,000 respectively. Their profit sharing ratio was

2;3 and interest allowed on capital as provided in the Partnership Deed was 12% per

annum. During the year ended 31.3.2014, the firm earned a profit of 2,00,000.

Prepare Profit and Loss Appropriation Account of Brij and Nandan for the year

ended 31.3.2014.

(C.B.S.E. 201