 | Great Britain. Education Department. Department of Science and Art - 1882 - 510 pages
...Ibs. is placed on a horizontal plane and is made to slide over a distance of 50 ft. by a force of 4 Ibs., what number of units of work is done by the force ? If the coefficient of friction between the bod^r and the plane is 0'3, what number of units of work is done against friction ? At the instant... | |
 | Thomas Minchin Goodeve - 1886 - 252 pages
...Ibs. is placed on a horizontal plane, and is made to slide over a distance of 50 feet by a force of 4 Ibs. ; what number of units of work is done by the...what number of units of work is done against friction ? Ans. 200 foot-pounds. 15° „ 8. A force F, acting on a mass of 5 Ibs., increases its velocity in... | |
 | Thomas Minchin Goodeve - 1886 - 252 pages
...placed on a horizontal plane, and is made to slide over a distance of 50 feet by a force of 4 lbs. ; what number of units of work is done by the force...what number of units of work is done against friction ? Ans. 200 foot-pounds. 15° 8. A force F, acting on a mass of 5 lbs., increases its velocity in every... | |
 | Andrew Jamieson - 1892 - 300 pages
...20 feet high. A body weighing 100 Ibs. is pulled up from the bottom to the top, and then down again. If the co-efficient of friction between the body and the plane is .5, what work was expended in each case ? What would require to be the coefficient of friction in order... | |
 | Andrew Jamieson - 1894 - 350 pages
...20 feet high. A body weighing loo Ibs. is pulled up from the bottom to the top, and then down again. If the co-efficient of friction between the body and the plane is -5, what work was expended in each case ? What would require to be the coefficient of friction in order... | |
 | George Albert Wentworth - 1898 - 456 pages
...the plane, and how much work against gravity is done in the ascent, (1) if there is no friction, (2) if the coefficient of friction between the body and the plane is J' ? 7. A force of 75 Ib. is exerted along a smooth inclined plane 5 yd. long and 3 ft. high. What... | |
 | George Albert Wentworth, George Anthony Hill - 1898 - 184 pages
...the plane, and how much work uyainst gravity is done in the ascent, (1) if there is no friction, (2) if the coefficient of friction between the body and the plane is ^ ? (1) Let x denote the required force. By § 207, we have 50 x = 30 x 80 , x = 48 Ib. Work done against... | |
 | Andrew Jamieson - 1902 - 414 pages
...20 feet high. A body weighing loo Ibs. is pulled up from the bottom to the top, and then down again. If the co-efficient of friction between the body and the plane is -5, what work was expended in each case ? What would require to be the coefficient of friction in order... | |
 | Robert James Allman Barnard - 1916 - 396 pages
...of ascent and descent. 8. A body is projected up an incline of 20° with a velocity of 30 ft./sec. If the coefficient of friction between the body and the plane is 0-25, find the distance it goes up the plane and the velocity with which it returns to the starting... | |
 | Robert James Allman Barnard - 1916 - 390 pages
...of ascent and descent. 8. A body is projected up an incline of 20° with a velocity of 30 ft./sec. If the coefficient of friction between the body and the plane is 0-25, find the distance it goes up the plane and the velocity with which it returns to the starting... | |
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If the coefficient of friction between the body and the plane is 0-3, what number of units of work is done against friction ? Ans. 
