The given diagram shows a series of images of a moving ball captured by a camera.
The ball was moving at a constant velocity and the images were taken at a constant rate of 10 per second.
What is the speed of the ball?
A30 ms-1
B20 ms-1
C45 ms-1
D15 ms-1
Ans 3:
Class : Class 7
how come option [A] is correct i did not understand i thought the answer would be option [D]
Ans 6:
Class : Class 7
oh I Understood thisCorrect option is A)Between points A and B the ball covers 5 equal distances=5xTherefore, 5x=15mx=3m10 images are taken in 1 second,Therfore 1 image takes 101â sSpeed of the ball= 101â 3â =3Ã10=30m/s
Ans 9:
Class : Class 9
it is just 5 frames in so just half a second tus the actual speed should not be 15 but 30