The figure below (not to scale) shows an acceleration-time graph of a body. a (m/s"2) g 20 If the initial velocity was zero, a(0) = ag = 8.3 m/s\"2, a(7) = a7 = -2.2 m/s"2 and the particle's acceleration returns to zero at t = 10s, what will the body's velocity be at t = 10 87 Express your answer to three significant figures in units of m/s (but do not write the units with your answer)