STATEMENT-1: It is easier to pull a heavy obj | vedclass

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Question

(B) When pushing an object at an angle $	heta$ with the horizontal,the normal force $N = mg + F \sin 	heta$. The frictional force is $f = \mu N = \m

Vedclass · Accepted Answer

$STATEMENT-1$ is True,$STATEMENT-2$ is True; $STATEMENT-2$ is $NOT$ a correct explanation for $STATEMENT-1$.

Vedclass · Answer

(B) When pushing an object at an angle $	heta$ with the horizontal,the normal force $N = mg + F \sin 	heta$. The frictional force is $f = \mu N = \mu(mg + F \sin 	heta)$.When pulling an object at an angle $	heta$ with the horizontal,the normal force $N = mg - F \sin 	heta$. The frictional force is $f = \mu N = \mu(mg - F \sin 	heta)$.Since the normal force is smaller during pulling,the frictional force is also smaller,making it easier to pull.$STATEMENT-1$ is True because of the difference in normal force,not just the nature of the surfaces.$STATEMENT-2$ is a true statement regarding the laws of friction,but it does not explain why pulling is easier than pushing.Therefore,both statements are true,but $STATEMENT-2$ is not the correct explanation for $STATEMENT-1$.

$STATEMENT-1$: It is easier to pull a heavy object than to push it on a level ground.
$STATEMENT-2$: The magnitude of frictional force depends on the nature of the two surfaces in contact.

Similar Questions

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$STATEMENT-1$: It is easier to pull a heavy object than to push it on a level ground.$STATEMENT-2$: The magnitude of frictional force depends on the nature of the two surfaces in contact.