APPLICATIONS Sr Acceleration due to gravity: When a steel ball is released down an inclined plane, the rate of the ball's acceleration depends on the angle of incline. The acceleration can be approximated by the formula A(0) = 9.8 sin 0, where 0 is in degrees and the acceleration is measured in meters per second/per second. To the nearest tenth of a degree, Wl fro ar %3D ar Vo S1 91. What angle produces an acceleration of 0 m/sec2 when the ball is released? Explain why this is reasonable. re fi 19 92. What angle produces an acceleration of 9.8 m/sec2? What does this tell you about acceleration due to gravity? tl i 93. What angle produces an acceieration of 5 m/sec2? Will the angle be larger or smaller for an acceleration of 4.5 m/sec2? 94. Will an angle producing an acceleration of 2.5 m/sec? be one-half the angle required for an acceleration of 5 m/sec2? Explore and discuss.

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Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products. 

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.