3. The following equations give the position x(t) of a particle in four situations (in each equation, x is in meters, t is in seconds, and t> 0): (1) x = 3t - 2;(2) x =-4t° - 2; (3)x = 2/t;and (4) x =-2.(a) In which situation is the velocity v of the particle constant? (b) In which is v in the negative x direction?
3. The following equations give the position x(t) of a particle in four situations (in each equation, x is in meters, t is in seconds, and t> 0): (1) x = 3t - 2;(2) x =-4t° - 2; (3)x = 2/t;and (4) x =-2.(a) In which situation is the velocity v of the particle constant? (b) In which is v in the negative x direction?
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PHYSICS FOR ENGINEERS (CALCULUS BASED)
Transcribed Image Text:3. The following equations give the position x(t) of a particle in four situations (in each
equation, x is in meters, t is in seconds, and t> 0): (1) x = 3t - 2;(2) × =-4t° - 2; (3)x = 2/t;and
(4) x =-2.(a) In which situation is the velocity v of the particle constant? (b) In which is v in
the negative x direction?
22 km
14
4. a) Describe the particle's motion for example problem cited in How to compute
instantaneous velocity and acceleration when t = 1 s, t = 2 s, t = 3 s, and t = 4 s. b) Draw
the five stages of the particle's motion from t = 0 relative to a frame of reference.
12 km
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