1.

If x - at + bt2, where x is the distance travelled by thebody in kilometres while t is the time in seconds, then theunits of b are(a) km/s(b) km-s(d) km-s2(c) km/s2

Answer»

X = at + bt^2

Units of at and bt^2 should be km. Then it is possible to get “x” in km.

Therefore,km = b(s)^2b = km/s^2

Units of b is km/s^2



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