A frictionless spring with a 4-kg mass can be held stretched 2 meters beyond its natural length by a force of 100 newtons. If the spring begins at its equilibrium position, but a push gives it an initial velocity of 1 m/sec, find the position of the mass after t seconds.

Q: A rope is hanging off the edge of a building that is 10 meters tall. The rope extends the entire…

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Q: L N M

A: Use tan trigonometric ratio to find MN.

Q: Newton's Law of Cooling says that the temperature of a cooling substance is T = A + (T, – A)e*t, A…

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Q: A particle moves in a straight line with velocity 10 - 4t ft/s. Find the total displacement and…

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Q: A rock thrown vertically upward from the surface of the moon at a velocity of 32 m/sec reaches a…

A:

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.