A stone is dropped from a height of 20 m above the ground. Will it have a uniform or non-uniform speed, as it moves towards the ground? Open Answer ยป
With the help of an activity, explain how will you measure the time period of a simple pendulum. Open Answer ยป
Boojho goes to the football ground to play football. The distance-time graph of his journey from his home to the ground is given in figure.Q1. What does the graph between point B and C indicate about the motion of Boojho? Q2. Is the motion between 0 to 4 minutes uniform or non-uniform? Q3. What is his speed between 8 and 12 minutes of his journey? Open Answer ยป
Distance between Bholuโs and Goluโs house is 9 km. Bholu has to attend Goluโs birthday party at 7 oโclock. He started from his home at 6 oโclock on his bicycle and covered a distance of 6 km in 40 minutes. At that point he met Chintu and he spoke to him for 5 minutes and reached Goluโs birthday party at 7 oโclock. With what speed did he cover the second part of the journey? Calculate his average speed for the entire journey. Open Answer ยป
Given below as figure is the distance-time graph of the motion of an object. Q1. What will be the position of the object at 20 s? Q2. What will be the distance travelled by the object in 12 s? Q3. What is the average speed of the object? Open Answer ยป
Plot a distance-time graph of the tip of the second hand of a clock by selecting 4 points on x-axis and y-axis respectively. The circumference of the circle traced by the second hand is 64 cm. Open Answer ยป
Starting from A, Paheli moves along a rectangular path ABCD as shown in figure below. She takes 2 minutes to travel each side. Plot a distance-time graph and explain whether the motion is uniform or non-uniform. Open Answer ยป
The average age of children of Class VII is 12 years and 3 months. Express this age in seconds. Open Answer ยป
Complete the data of the table given below with the help of the distance-time graph given in figure.Distance (m)04?12?20Time (s)024?810 Open Answer ยป