Question

A 4.0 kg toy car can move along an x axis. The figure gives Fx of the force acting on the car, which begins at rest at time t = 0. The scale on the Fx axis is set by Fxs = 7.0 N. In unit-vector notation, what is at (a)t = 2.0 s and (b)t = 5.0 s,(c) what is at t = 7.0 s?

Fx (N) 16 84

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Answer #1

m-4kg Fas - 700 ao at t=2 sec Area = mlu-u) I tax C2 xt) - 14 =4(0-0) [v=305 m/s (b) at t=540c Area amw-u) t + (5+2) + (2x7)

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