Answer:
(a) , (b) , (c)
Explanation:
The statement is incomplete:
The force on an object is . For the vector . Find: (a) The component of parallel to , (b) The component of perpendicular to , and (c) The work , done by force through displacement .
(a) The component of parallel to is determined by the following expression:
Where is the unit vector of , which is determined by the following expression:
Where is the norm of , whose value can be found by Pythagorean Theorem.
Then, if and , then:
(b) Parallel and perpendicular components are orthogonal to each other and the perpendicular component can be found by using the following vectorial subtraction:
Given that and , the component of perpendicular to is:
(c) The work done by through displacement is:
Answer:No
Explanation: No, If forces are being applied to the object the object will not remain at rest.
Answer:
The expression for the time taken by an object to move with a speed at some distance is,
t=<u> </u><u>d</u><u>/</u><u>v</u>
Here, t is the time taken by the opponent to react, d is the length of the court, andis the speed of the ball.
Explanation:
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Objects absorb and reflect light differently depending on their physical characteristics, such as their shape or composition. Thanks to the reflection we can see the objects. Reflection can be defined as the change of direction of a wave, which, when in contact with the separation surface between two changing means, returns to the point where it originated. When the light illuminates the object, such as the tree, the rays of light will disperse in all directions allowing observation.
The correct answer is A. From every point on the surface of the tree, and in every direction