Calculate the Average Force a Bumper Would Have to Exert

question 14

Multiple Choice

Calculate the average force a bumper would have to exert to bring a 1200-kg car to rest in 15 cm when the car had an initial speed of 2.0 m/s (about 4.5 mph) .

• A)1.8 × 10⁴ N
• B)1.6 × 10⁴ N
• C)5.4 × 10⁴ N
• D)6.5 × 10⁵ N
• E)3.2 × 10⁴ N

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Definitions:

Optically Active

A characteristic of a compound that has the ability to rotate the plane of polarized light, caused by the presence of asymmetry in the molecule.

Bromine Water

An aqueous solution of bromine used as a reagent in organic chemistry, particularly in tests for unsaturation.

Aldaric Acid

A type of sugar acid obtained by oxidizing both the aldehyde group and the primary alcohol group of an aldose to carboxylic acids.

Optically Active

Refers to substances capable of rotating the plane of polarized light due to the presence of chiral molecules.