Question

a girl bends to touch her toes . is the motion of her head an example of uniform motion or accelerated motion? explain your answer.

Answer 1

heya mate

here is ur answer

Her motion is not specified in the question

But

OF SHE IS BENDING WITH THE SAME SPEED FROM FIRST TO LAST THEN IT WILL BE UNIFORM MOTION

or

IF SHE CHANGED HER SPEED AS PER HER CONVINCE, ,, AND NOT ABLE TO CONTINUE THE SAME SPEED THEN IT MIGHT BE ACCELERATE MOTION

AS ACCELERATION MEANS RATE OF CHANE OF VELOCITY


finally i would like to say that her motion can't be prdicited unless her speed is given


thanks !!!

hope it helped

Answer 2

The motion of the head of the girl while touching her toe is an example of accelerated motion because (i) The direction of her head is a circular path. So, The direction of velocity is always changing and so the velocity always changing. (i.e - The velocity can never be constant). Since, the velocity is changing. So, there is an acceleration. So, it is an example of accelerated motion.

(ii) Also because, Before bending her head, The speed of her head is zero and when she starts bending her head, the speed of her head is gradually increasing and finally after touching her toes. The speed of her head is again zero. So, This conclude that the speed is continuously changing. (i.e The speed can never be constant). Since, the speed is changing. So, there is an acceleration. So, it is an example of accelerated motion.

It is not uniform motion because we observe that neither its velocity is constant nor its speed is constant.