Each of the following statements is either true or false. For each one, state whether it is true or false and explain.a) If the force applied on an object is in the direction of its motion, the speed of the object decreases.b) A charged body repels an uncharged body.c) A magnet attracting another magnet is a non-contact force.
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Explanation:
a) If the force applied on the object is in the direction of its motion, the speed of the object increases. If the force is applied in the direction opposite to the direction of motion, then it results in a decrease in the speed of the object
b). Yes, a charged body can attract another uncharged body. When the charged body is placed near the uncharged body, the induced charges of opposite kind are produced on the uncharged body by the charged body. Now, they are oppositely charged and the uncharged body is attracted by charged body.
c). Since a magnet can exert magnetic force on Iron objects from a distance therefore magnetic force is a non contact force. ... The like poles of two magnets repel each other where as unlike poles of magnet attract each other.