Test:327 QNo:4

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Velocity time equation of a particle moving in a straight line is v=2t-4 for t<or equal to 2seconds and v=4-2t for t>2s . the distance travelled by the particle in the time inteval of t=0 to t=4s is

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virang1 Jhaveri ·2009-04-15 22:14:43

For t<2
dx/dt = 2t -4
s = t² - 4t
S = 4 - 8
S = -4

For T>2
dx/dt = 4 - 2t
x = 4t - t²
x = 8 - 16 + 4
x = -4

Total distance = 8

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Honey Arora ·2009-04-15 22:39:09

i think itz 10

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Test:327 QNo:4

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