Statement-1 : A cloth covers a table. Some dishes are kept on it. The cloth can be pulled out without dislodging the dishes from the table. Statement-2 : For every action there is an equal and opposite reaction.
Answer: B. Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1
Or read the worked solution below. Jump to the steps ↓
Written solution
Step 1: Analyze the forces acting on a dish.
The vertical forces cancel each other out, leaving friction as the only horizontal force acting on the dish.
Step 2: Analyze the effect of pulling the cloth quickly.
When the cloth is pulled rapidly, the contact time is extremely short.
As , both the change in velocity and the displacement approach zero, meaning the dishes remain virtually undisturbed.
Step 3: Identify the physical law explaining Statement-1.
According to Newton's First Law of Motion, a body at rest remains at rest unless acted upon by a net external force.
This property is known as the inertia of rest, which explains why Statement-1 is true.
Step 4: Analyze Statement-2.
Newton's Third Law states that action and reaction forces are equal and opposite.
This statement is universally true, but since action and reaction forces act on different bodies, they do not determine the motion of the dish alone. Thus, Statement-2 is not the explanation for Statement-1.
Step 5: Determine the correct option.
Both statements are true, but Statement-2 is not the correct explanation of Statement-1.
Answer: Statement-1 is True, Statement-2 is True; Statement-2 is not a correct explanation for Statement-1.