Question

(A): A vector can not be resolved into two independent components if the axes are not at right angle.

(R): This is because the components can be further resolved along two axes which are perpendicular to each other.

(1) A is true, R is true and R is the correct explanation of A.


(2) A is true, R is true but R is not the correct explanation of A


(3) A is true, R is false


(4) Both A and R are false​

Answer 1

Answer:

Motion, in physics, change with time of the position or orientation of a body. ... Motion that changes the orientation of a body is called rotation. In both cases all points in the body have the same velocity (directed speed) and the same acceleration (time rate of change of velocity).

Answer 2

$\Large\mathtt\green{ }\huge\underline\mathtt\red{Answer : }$

(A)The step-by-step procedure above is illustrated in the diagram below to show how a velocity vector with a magnitude of 50 m/s and a direction of 60 degrees above the horizontal may be resolved into two components. The diagram shows that the vector is first drawn to scale in the indicated direction; a parallelogram is sketched about the vector; the components are labeled on the diagram; and the result of measuring the length of the vector components and converting to m/s using the scale. (NOTE: because different computer monitors have different resolutions, the actual length of the vector on your monitor may not be 5 cm.)

(R)Resolution of a vector is the process of splitting up a vector (force) into two perpendicular component parts. They are called rectangular components because the two component forces are mutually perpendicular. Therefore the horizontal component of the force R is R cosƟ.

(1)(a) Both A and R are true and R is the correct explanation of A. Explanation: The rates of most reactions increase with a rise in temperature. The higher the temperature, the larger the fraction of molecules that can provide the activation energy needed for reaction.

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