Question

Q5 GIVE REASON FOR THE FOLLOWING:
(a) RUBBED SCALE ATTRACTS PIECES OF PAPER TOWARDS IT.
(b) MOVING BALL STOPS AFTER SOMETIME AFTER HITTING WITH A CRICKET BAT.
(C) AN OBJECT CAN HAVE MORE THAN ONE KIND OF MOTIONS AT THE SAME
TIME.​

Answer 1

Explanation:

$\huge\tt\fbox\purple{a) Answer}$

=>Within the papers strips, the electrons get either repelled or attracted according to whether the scale has a negative or a positive charge.

=>This makes the paper strips have an unlike charge in the direction of the scale, and makes them rise towards it.

$\huge\tt\fbox\purple{b) Answer}$

=>When the ball rolls on the ground, the ground exerts a friction force on the ball in the opposite direction of its motion.

=>The ball slows down and comes to rest due to opposing forces of air resistance and frictional force on the ball opposing its motion. 

$\huge\tt\fbox\purple{c) Answer}$

=>Yes, an object at a time can have "more than one type of motion".

Example:

=>The wheels of a moving from position A to position B while rotating.

=>The earth rotates about its axis (rotatory motion) and at the same time it revolves around the sun in a curved path (curvilinear or circular motion) in a fixed time interval (periodic motion).