A ball is fired from a cannon at point 1 and follows the trajectory shown in Figure Q3.2...

A ball is fired from a cannon at point 1 and follows the trajectory shown in Figure Q3.22 . Air resistance may be neglected. Five possible vectors are also shown in the figure; the letter E represents the zero vector. Which vector best represents

a. The ball’s velocity at position 2?

b. The ball’s acceleration at position 2?

c. The ball’s velocity at position 3?

d. The ball’s acceleration at position 3?