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

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.

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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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