Answer:
He realized he needs to have the upper body and lower body held in place and needed the buckle as far down beside the person's hip so it could hold the body properly
Explanation: ''I realized both the upper and lower body must be held securely in place with one strap across the chest and one across the hips,'' Mr. Bohlin once said. ''The belt also needed an immovable anchorage point for the buckle as far down beside the occupant's hip, so it could hold the body properly during a collision.
The density of it would be 57. Do the math and apply the formula to it and you would get this answer.
mass = mol no. x molar mass
= 13.6 x 56+(3x14)+(9x16)
= 242g
