### Applied Mechanics

An example of a pulley system.

### Chest Developer

A man exercising with the chest developer.

### Chest Expander

A man exercising with the chest expander.

### Chest Weights

A man exercising with chest weights. In this position, he is pulling straight back, alternating right…

### Chest Weights

A man exercising with chest weights. In this position, he is pulling straight down, alternating right…

### Chest Weights

A man exercising with chest weights. In this position, he is pulling towards his chest, alternating…

### Chest Weights

A man exercising with chest weights. In this position, he is extending his arms out, right and left…

### Chest Weights

A man exercising with chest weights. In this position, he is pushing his arms down, right and left together…

### Chest Weights

A man exercising with chest weights. In this position, he is pushing his arms forward, right and left…

### Chest Weights

A man exercising with chest weights. In this position, he is pulling his left arm straight down repeatedly.…

### Chest Weights

A man exercising with chest weights. In this position, he is extending his left arm straight out repeatedly.…

### Chest Weights

A man exercising with chest weights. In this position, he is extending his left arm straight out repeatedly.…

### Chest Weights

A man exercising with chest weights. In this position, he is bringing the handles to his knees and then…

### Chest Weights

A man exercising with chest weights. In this position, he was bent, brought the handles to his knees…

### Chest Weights

A man exercising with chest weights. In this position, he is pulling the handles toward his chest, together…

### Chest Weights

A man exercising with chest weights. In this position, he is pulling down with his left arm and up with…

### Chest Weights

A man exercising with chest weights. In this position, he is pulling down with his left arm and across…

### Chest Weights

A man exercising with chest weights. In this position, he is extending his right arm and pulling across…

### Chest Weights

A man exercising with chest weights. In this position, he is extending his right arm across his back…

### Chest Weights

A man exercising with chest weights. In this position, he is extending his left arm across his back…

### Chest Weights

A man exercising with chest weights. In this position, he is extending his arms out together repeatedly.

### Chest Weights

A man exercising with chest weights. In this position, he is moving his arms out at the same time, directly…

### Chest Weights

A man exercising with chest weights. In this position, he is moving his right hand up and out while…

### Chest Weights

A man exercising with chest weights. In this position, he is moving his left hand up and out while he…

### Chest Weights

A man exercising with chest weights. In this position, he is bending down passing his arms under his…

### Chest Weights

A man exercising with chest weights. In this position, he has bent down and passed his arms under his…

### Chest Weights

A man exercising with chest weights. In this position, he extends his arms forward and returns.

### Chest Weights

A man exercising with chest weights. In this position, he extends his left arm and returns the right,…

### Chest Weights

A man exercising with chest weights. In this position, he brings his hands forward together, and returns.

### Chest Weights

A man exercising with chest weights. In this position, he extends his right arm out horizontally and…

### Chest Weights

A man exercising with chest weights. In this position, he brings his left arm across his chest.

### Chest Weights

A man exercising with chest weights. In this position, he brings his right arm down and extends his…

### Chest Weights

A man exercising with chest weights. In this position, arms are folded and he repeatedly stretches them…

### Chest Weights

A man exercising with chest weights. In this position, he extends the right arm out fully and brings…

### Chest Weights

A man exercising with chest weights. In this position, he extends both arms out at the same time: left…

### Chest Weights

A man exercising with chest weights. In this position, he is bent with his hands to the floor. He then…

### Chest Weights

A man exercising with chest weights. In this position, he extends his left arm out vertically.

### Chest Weights

A man exercising with chest weights. In this position, he extends his left arm out upward at a 45 degree…

### Chest Weights

A man exercising with chest weights. In this position, he extends his arms together in front of him.

### Chest Weights

A man exercising with chest weights. In this position, he gently moves his head forward and back.

### Chest Weights

A man exercising with chest weights. In this position, he bends his knee and brings his foot to the…

### Chest Weights

A man exercising with chest weights. In this position, he extends his right leg backward while leaning…

### Chest Weights

A man exercising with chest weights. In this position, he extends his left leg forward and then bends…

### Chest Weights

A man exercising with chest weights. In this position, he extends his left leg forward and then bends…

### Chest Weights

A man exercising with chest weights. In this position, he brings his left leg down to the floor, straight…

### Chest Weights

A man exercising with chest weights. In this position, he bends over and straightens his body with his…

### Chest Weights

A man exercising with chest weights. In this position, he has bent over and now straightens his body…

### Chest Weights

A man exercising with chest weights. In this position, he pulls his arms down and back, alternately…

### Pulley Example

An example of a pulley system.