A car accelerates in the +x direction from rest with a constant acceleration of a1 = 1.66 m/s2 for t1 = 20 s. At that point the driver notices a tree limb that has fallen on the road and brakes hard with a constant acceleration of a2 = -6.3 m/s
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Step 1
Using the formula: \[ v = u + a \cdot t \] where \( u = 0 \) (initial velocity), \( a = 1.66 \, \text{m/s}^2 \), and \( t = 20 \, \text{s} \). \[ v = 0 + (1.66 \, \text{m/s}^2) \cdot (20 \, \text{s}) = 33.2 \, \text{m/s} \] Show more…
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