AST201H1 Midterm: Exam Study Notes

57. Line 5 (A) for (int j = -i*2; j<= i*2; j++){ (B) for (int j = 0; j< i+2+1; j++){ (C) for (int j = -i; j> i; j++) { (D) for (int j = 0; j<= i*2; j++){ (E) for (int j = i; j<= i+2; j+i) {

At t = 0, a particle moving in the xy plane with constantacceleration has a velocity of vi = (3.00 i - 2.00 j) m/s and is atthe origin. At t = 2.80 s, the particle's velocity is v = (8.00 i +5.00 j) m/s.

(a) Find the acceleration of the particle at any time t. (Use t, i,and j as necessary.)
..........................................................m/s2
(b) Find its coordinates at any time t.
x = ........................................... i m
y = ............................................ j m

Particle in xy plane The position r of a particle moving in an xyplane is given by
r = (2.00t3 - 3.00t) i + (7.00 - 2.00t4) j. Here r is in meters andt in seconds.

(a) Calculate r for t = 1.00 s.
______m i + ______m j + ______m k

(b) Calculate v for t = 1.00 s.
____m/s i + ______m/s j + _____m/s k

(c) Calculate a for t = 1.00 s.
______m/s^2 i + ______m/s^2 j + ______m/s^2 k