A Sled Is on an Icy (Frictionless)slope That Is 30°above

question 68

Multiple Choice

A sled is on an icy (frictionless) slope that is 30°above the horizontal.When a 40-N force, parallel to the incline and directed up the incline, is applied to the sled, the acceleration of the sled is 2.0 m/s², down the incline.The mass of the sled is:

• A)4.1 kg
• B)6.2 kg
• C)8.1 kg
• D)10 kg
• E)14 kg

---

Definitions:

Incomplete Dominance

A genetic phenomenon where the phenotype of the heterozygote is intermediate between both homozygote parents.

Heterozygote

An individual possessing two different alleles of a particular gene, one inherited from each parent.

Intermediate Expression

It refers to the expression of a phenotype that is between two extremes, typically resulting from incomplete dominance in genetics.

Gastrulation

During the early stages of embryonic evolution in a wide range of animals, the simple, single-layered structure called a blastula rearranges itself into a complex, multilayered formation known as the gastrula.