The position of an object is given by x = bt3

a. if x and t are meters and seconds respectively, what are the units of b?

b. what is the instantaneous velocity at time t?

c. find the average velocity from t = 0 to t = t

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23 June, 14:32

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Lesly Pruitt · Answer 1

A. according to principle of homogeneity

[x] = [b] [t^3]

[b] = [x]/[t^3]

[b] = [MT^-3]

unit of b = m / s^3

b.

dx/dt = d (bt^3) / dt

v = 3bt^2

The position of an object is given by x = bt3a. if x and t are meters and seconds respectively, what are the units of b?b. what is the instantaneous velocity at time t?c. find the average velocity from t = 0 to t = t