An object is propelled from the origin with acceleration ? =(4.00?̂+2.00?̂) ?/?2 and initial velocity ? 0 =(8.00?̂+12.0?̂) ?/? for 5.00 seconds. After this 5.00 second interval, the object then travels as a projectile. a. Determine how long the object is in the air. b. What is the object’s position vector (in unit-vector notation) when it reaches its maximum altitude? c. What is the object’s velocity vector (in magnitude and direction) just before it hits the ground?

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Projectile Motion