Which of the following statement is correct regarding velocity and speed of a moving body ?

(a) velocity of a moving body is always higher than its speed

(b) speed of a moving body is always higher than its velocity

(c) speed of a moving body is its velocity in a given direction

(d) velocity of a moving body is its speed in a given direction

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Solution

Answer

(d) velocity of a moving body is its speed in a given direction

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Mark the correct statement(s)
(1) If speed of a body is varying, its velocity must be varying and it must have non-zero acceleration.

(2) If velocity of a body is varying, its speed must be varying.

(3) A body moving with varying velocity may have constant speed.

(4) A body moving with varying speed may have constant velocity, if its direction of motion remains constant.

Q. Consider the given statements and select the option which correctly identifies the true

(T)

and false

(F)

statements.
(i) Distance is the magnitude of displacement in all cases.
(ii) When a body moves with uniform speed, then the average speed is same as instantaneous speed.
(iii) Average speed is greater than the average velocity if a body is moving in a straight line without reversing its direction.
(iv) When a body moves with constant velocity, the average velocity is zero.

Q. Consider the following statements and select the option which correctly identifies the true (T) and false (F) statements.
(i) Distance is the magnitude of displacement in all cases.
(ii) When a body moves with uniform speed,then the average speed is same as instantaneous speed.
(iii) Average speed is greater than the average velocity if a body is moving in a straight line without reversing its directions.
(iv) When a body moves with constant velocity, the average velocity is zero.

If a body travels at a uniform velocity of $u$ for $t$ seconds and at a different velocity of $v$ for the next $t$ seconds, what is the total distance covered in $2 t$ seconds?

Q. (1) : If a body moving in a circular path has a constant speed, then there is no force acting on it.
(2) : The direction of the velocity vector of a body moving in a circular path is changing.

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Answer (d) velocity of a moving body is its speed in a given direction

Answer

(d) velocity of a moving body is its speed in a given direction