A) force increases, friction increases
2 Answers 2 viewsCorrect option is (D) \(7\,\frac{1}{2}\) hrs \(\because\) Time taken to fill a \(50\,l\) of tank = 5 hours \(\therefore\) Time taken to fill a \(75\,l\) of tank \(=\frac5{50}\times75\;hours\) \(=\frac{75}{10}\;hours\) = 7.5 hours = 7 hours + \(\frac12\) hours = \(7\frac12\) hours
2 Answers 1 viewsCorrect Answer - C `v=u+at,F=ma`
2 Answers 1 viewsA sick moneyed man is not so happy as a healthy poor man.
2 Answers 42 viewsWe are not free from danger. Danger often comes where, it is feared.
2 Answers 2 viewsRestless life is risky. We have to take rest, to regain our strength.
2 Answers 1 viewsIf a man does not work hard, he cannot shine in life.
2 Answers 1 viewsIf we are not healthy, we cannot be happy in life. / we cannot enjoy this beautiful world.
2 Answers 1 viewsSo, we should take a rest so that we can keep fit.
2 Answers 1 views