The position as a function of time of a body dropped from a certain height is described by the equation 7(t) = [-(4.9t2)j]m . What is the position vector of the body at t = 6.0 s?The position as a function of time of a body dropped from a certain height is described by the equation F) = [(4_9t2)j]m . What is the velocity vector of the body at t = 6.0 s? The position as a function of time of a body dropped from a certain height is described by the equation F03) = [(4_9t2)j]m . What does the equation imply about the acceleration vector of the body? Which of the following equations describes the position vector of a ball thrown with an initial speed of 28 mfg/15 above the ground? What is the velocity of a ball thrown with an initial speed of 28 m/s, 45 above the ground at t = 2.0s?What can be derived about a particle's acceleration if it is moving with a velocity of D(t) = (5.4)i+ (8.0)j + (10t2)k]m/s ?A particle is moving with a velocity function D(t) = (5.4)i+ (8.0)j + (10t?)k]m/s . What is the magnitude of the particle's velocity along horizontal after 2.0 s?What is the resultant of the two vectors: A = 10 km, south; B = 3.5 km, north?A cart is moving towards the east at a rate of 2 m/s. What is the cart's velocity?\f