Q7 of 57 Page 96

Two cars of unequal masses use similar tires. If they are moving at the same initial speed, the minimum stopping distance

It will be same for both cars because acceleration/ deacceleration of the body is independent of their respective masses.

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Consider the situation shown in figure (6-Q1). The wall is smooth but the surfaces of A and B in contact are rough. The friction on B due to A in equilibrium


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Suppose all the surfaces in the previous problem are rough. The direction of friction on B due to A

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In order to stop a car in shortest distance on a horizontal road, one should

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A block A kept on an inclined surface just begins to slide if the inclination is 30°. The block is replaced by another block B and it is found that it just begins to slide if the inclination is 40o.