# Problem: i) What is the direction of a when the pendulum is at position 1? Enter the letter of the arrow parallel to a_vec. ii) What is the direction of a at the moment the pendulum passes position 2? Enter the letter of the arrow that best approximates the direction of a. iii) What is the direction of a when the pendulum reaches position 3? Give the letter of the arrow that best approximates the direction of a. iv) As the pendulum approaches or recedes from which position(s) is the acceleration vector a almost parallel to the velocity vector v?

###### FREE Expert Solution

i)

The component of acceleration is gsinθ. ###### Problem Details i) What is the direction of a when the pendulum is at position 1? Enter the letter of the arrow parallel to a_vec.

ii) What is the direction of a at the moment the pendulum passes position 2? Enter the letter of the arrow that best approximates the direction of a

iii) What is the direction of a when the pendulum reaches position 3? Give the letter of the arrow that best approximates the direction of a

iv) As the pendulum approaches or recedes from which position(s) is the acceleration vector a almost parallel to the velocity vector v?