# Is motion of hours hand on the dial of a clock?

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## Is motion of hours hand on the dial of a clock uniform circular motion?

The motion of a second hand in a clock has a constant speed and it covers equal distance at an equal interval of time but changes the direction. Hence the second’s hand of the clock is an example of non-uniform motion. The answer is Option (B): Uniform motion.

## Is the motion of the second hand of a clock?

The motion of the entire second hand is rotational motion and the motion of any point on the second hand like its tip is a circular motion. And the motion is periodic as it sweeps equal distance in equal time. It is a circular motion with the angular speed 2 pi/12 hours which is approximately 0.00833 degrees/second.

## Which one of the following is not a case of uniform circular motion?

c) Motion of a racing car on a circular track. For a racing car, speed of the car is not constant (its either accelerating or decelerating). Hence, it is not uniform circular motion.

## Which one of the following is most likely not a case of uniform motion?

Answer : Option C is not a case of uniform circular motion as the speed of the car is not constant. It increases or decreases the speed during the motion.

## What remains constant in uniform circular motion?

In a uniform circular motion, the direction of velocity is along a tangent drawn to the position of the particle on the circumference of a circle. … Hence speed remains constant in a uniform circular motion.

## Is the motion of tip of seconds hand a uniform circular motion?

Answer: The tip of the ‘seconds’ hand’ of a watch represents circular motion. Because the tip covers equal angular distance in equal interval of time so its motion considers as an example of uniform circular motion.

## What is the speed of a second hand clock?

The seconds hand of a clock completes one rotation in 1 minute i.e 60 seconds. Thus, option C is correct. The second hand therefore makes one revolution every minute – that is, 1 revolution per minute (rpm), which is 1/60 of a revolution per second, which is 6 degrees per second.

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

Velocity of a moving body is always higher than its speed.

## What peculiar thing had Mohan’s son learned about circular motion in his class that he wanted to test in the track?

He had recently learned a peculiar thing about circular motion and coerced his father to take the car to a circular track and drive at constant speed. Here, minus sign indicates retardation; velocity is decreasing. Ans : In a circular motion, the speed of an object remains same but the velocity is non – uniform.

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