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4/4/05 QU|Z1 Name.__ A _- x, w A ﬁ—"—_— PROBLEM 1: The velocity of a particle which moves along the x—axis is given by v = 2 — 4t + 5t3/2 where t is in
\./ seconds and v is in meters per second. ‘ ‘ . . . . — ‘- /
Write the units assomated With each coefﬁcient on the right side: 2 “Vs '/ , —4 ms‘ / 2 Evaluate the position x, velocity v, and acceleration a when t= 3 s. The particle is at the position x0 = 3m when t= 0. 3
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_,’_~—--' PROBLEM 2: Linear Impulse is equal to the change in the linear momentum of a particle. Calculate the linear
impulse using the equation below. Express your answer in lbf' sec. Show all units and conversions. Linear Impulse = mv2 — mv1 Given: m = 2 lbm, v2 = 5 ft/s, v1: 3 ft/s. mvz/ my} : (Zlbmd(§£s:_p> .. (ZlEh-D(g £5.)
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