355778 A block of mass \(100\,kg\) slides over a distance of \(10 \,m\) on a horizontal surface. If the coefficient of friction between the surfaces is 0.4 then the work done against friction (in \(J\) ) is

355779 Work done by force of friction

355780 A weight lifter jerks \(220\;kg\) vertically through 1.5 meters and holds still at that height for two minutes. The works done by him in lifting and in holding it still are respectively

355781 A particle is moved from a position \({\vec{r}_{1}=(3 \hat{i}+2 \hat{j}-6 \hat{k}) m}\) to a position \({\vec{r}_{2}=(14 \hat{i}+13 \hat{j}-9 \hat{k})}\) metre under the action of a force \({\vec{F}=(4 \hat{i}+\hat{j}+3 \hat{k}) N}\). The workdone is equal to

355782 A force of magnitude \(F\) acts on the free end of the cord. The weight moves up slowly by a distance \(h\). How much work is done on the weight by the rope connecting pulley and weight?

355778 A block of mass \(100\,kg\) slides over a distance of \(10 \,m\) on a horizontal surface. If the coefficient of friction between the surfaces is 0.4 then the work done against friction (in \(J\) ) is

355779 Work done by force of friction

355780 A weight lifter jerks \(220\;kg\) vertically through 1.5 meters and holds still at that height for two minutes. The works done by him in lifting and in holding it still are respectively

355781 A particle is moved from a position \({\vec{r}_{1}=(3 \hat{i}+2 \hat{j}-6 \hat{k}) m}\) to a position \({\vec{r}_{2}=(14 \hat{i}+13 \hat{j}-9 \hat{k})}\) metre under the action of a force \({\vec{F}=(4 \hat{i}+\hat{j}+3 \hat{k}) N}\). The workdone is equal to

355782 A force of magnitude \(F\) acts on the free end of the cord. The weight moves up slowly by a distance \(h\). How much work is done on the weight by the rope connecting pulley and weight?

355778 A block of mass \(100\,kg\) slides over a distance of \(10 \,m\) on a horizontal surface. If the coefficient of friction between the surfaces is 0.4 then the work done against friction (in \(J\) ) is

355779 Work done by force of friction

355780 A weight lifter jerks \(220\;kg\) vertically through 1.5 meters and holds still at that height for two minutes. The works done by him in lifting and in holding it still are respectively

355781 A particle is moved from a position \({\vec{r}_{1}=(3 \hat{i}+2 \hat{j}-6 \hat{k}) m}\) to a position \({\vec{r}_{2}=(14 \hat{i}+13 \hat{j}-9 \hat{k})}\) metre under the action of a force \({\vec{F}=(4 \hat{i}+\hat{j}+3 \hat{k}) N}\). The workdone is equal to

355782 A force of magnitude \(F\) acts on the free end of the cord. The weight moves up slowly by a distance \(h\). How much work is done on the weight by the rope connecting pulley and weight?

355778 A block of mass \(100\,kg\) slides over a distance of \(10 \,m\) on a horizontal surface. If the coefficient of friction between the surfaces is 0.4 then the work done against friction (in \(J\) ) is

355779 Work done by force of friction

355780 A weight lifter jerks \(220\;kg\) vertically through 1.5 meters and holds still at that height for two minutes. The works done by him in lifting and in holding it still are respectively

355781 A particle is moved from a position \({\vec{r}_{1}=(3 \hat{i}+2 \hat{j}-6 \hat{k}) m}\) to a position \({\vec{r}_{2}=(14 \hat{i}+13 \hat{j}-9 \hat{k})}\) metre under the action of a force \({\vec{F}=(4 \hat{i}+\hat{j}+3 \hat{k}) N}\). The workdone is equal to

355782 A force of magnitude \(F\) acts on the free end of the cord. The weight moves up slowly by a distance \(h\). How much work is done on the weight by the rope connecting pulley and weight?

355778 A block of mass \(100\,kg\) slides over a distance of \(10 \,m\) on a horizontal surface. If the coefficient of friction between the surfaces is 0.4 then the work done against friction (in \(J\) ) is

355779 Work done by force of friction

355780 A weight lifter jerks \(220\;kg\) vertically through 1.5 meters and holds still at that height for two minutes. The works done by him in lifting and in holding it still are respectively

355781 A particle is moved from a position \({\vec{r}_{1}=(3 \hat{i}+2 \hat{j}-6 \hat{k}) m}\) to a position \({\vec{r}_{2}=(14 \hat{i}+13 \hat{j}-9 \hat{k})}\) metre under the action of a force \({\vec{F}=(4 \hat{i}+\hat{j}+3 \hat{k}) N}\). The workdone is equal to

355782 A force of magnitude \(F\) acts on the free end of the cord. The weight moves up slowly by a distance \(h\). How much work is done on the weight by the rope connecting pulley and weight?