The graph shown below is the velocity, in cm/sec, of an object moving along the x-axis between times t = 0 and t = 5 seconds. Positive velocity indicates motion to the right. 2 -3 v(t) 3 5 t (a) At time t = 5, where is the object in relation to its starting position? O The object is right of its starting position. O The object is at its starting position. O The object is left of its starting position. (b) At time t = 1, how far is the object from its starting position? cm (c) How far has the object traveled between t = 0 and t = 5? cm

The acceleration of a particle is given by a = a√t 5 where A = 2.5 m/s2. At t = 0, v = 6.2 m/s and x=0. ▶ Part A Part B ▾ Part C What is the acceleration at t= 4.5 s? Express your answer using two significant figures. a = Submit Part D ——| ΑΣΦ v= Request Answer What is the speed at t = 4.5 s? Express your answer using two significant figures. ? 15| ΑΣΦ ? m/s² m/s

For each graph of vx vs. t in the left column, choose the letter (a-i) corresponding to the appropriate description of motion. Not all descriptions will be used. Assume the usual coordinate system (+x to the right, +y up, +z out of the page). a. A cart moves to the right, gradually slowing down. qv Ux by hv Uxi X Ux Ux Ux dv Ux Additional Materials eBook b. A cart moves to the right, gradually slowing down, stops, and moves to the left, speeding up. c. A cart moves to the left at constant speed. d. A cart moves to the right, gradually speeding up. e. A cart remains stationary and does not move. f. A cart moves to the right at constant speed. g. A cart moves to the left, gradually slowing down. h. A cart moves to the left, gradually slowing down, stops, and moves to the right, speeding up. i. A cart moves to the left, gradually speeding up.

A ball is thrown straight up with an initial speed of 44 m/s. ▼ Part A Find its time in the air. Express your answer to three significant figures and include the appropriate units. HA Value Submit Request Answer. Units CMC ?