
Observe the given situation and answer the following questions.
Rahul and Ravi are playing in a ground. They start running from the same point simultaneously in the ground and reach point at the same time by following paths marked and in the figure.

Which of the following is correct statement for the given situation?
Rahul covers a longer distance with a lower speed.
Rahul covers a longer distance with a higher speed.
Rahul and Ravi both cover different distances with same speed.
Ravi covers a shorter distance with higher speed.


Important Questions on Motion and Measurement of Distances

While measuring the length of a wooden box, the reading at one end is on a scale and the other end is . What is the length of the wooden box?

(i) Oscillatory motion
(ii) Vibratory motion
(iii) Random motion
(iv) Rotational motion

Study the given Venn diagram. Which of the motions described by different bodies are most likely to be I, II and III?
Option | (I) | (ii) | (iii) |
A |
Hands of clock |
Motion of moon around the earth |
The blades of a fan |
B |
Motion of a top cart |
The wheels of a bullock |
Motion of honeybee |
C |
To and fro motion of a swing |
Hands of a clock |
Motion of a top cart |
D |
Motion of skin of tabla |
Child playing in a play ground |
A flying bird |

Two identical metal balls A and B moving in opposite directions with different speeds hit each other at point X as shown in the figure.
Changes will most likely appear in their
1. Shapes
2. Speeds
3. Directions
4. Volumes

The first time the pendulum passes through , a stopwatch is started.

The twenty-first time the pendulum pass through , the stopwatch is stopped. The reading is .
What is the time period of the pendulum?




