when the belt moves in the direction shown, w...
when the belt moves in the direction shown, which pulleys turn clockwise? a only 1 b only 2 c only 3 d both 1 and 2 only e all of them
Answer
# Explanation:
## Step1: Analyze Pulley 1
As the belt moves to the right as shown, Pulley 1 is a driving - pulley. The side of the belt in contact with Pulley 1 that is moving is the upper side. So, Pulley 1 rotates clock - wise.
## Step2: Analyze Pulley 2
The lower side of the belt is in contact with Pulley 2 and is moving to the left. So, Pulley 2 rotates counter - clockwise.
## Step3: Analyze Pulley 3
The upper side of the belt is in contact with Pulley 3 and is moving to the right. So, Pulley 3 rotates counter - clockwise.
# Answer:
A. only 1