 | John Minot Rice, William Woolsey Johnson - Differential calculus - 1880 - 464 pages
...extremity of his shadow travelling, supposing the light to be 10 feet above the level pavement on which he is walking? Draw a figure, and denote the variable...of the extremity of his shadow from the post by y. 7J miles per hour. 1i. At what rate does the man.s shadow (Ex. 10) increase in length ? III. Differentials... | |
 | John Minot Rice, William Woolsey Johnson - Differential calculus - 1880 - 486 pages
...of hi* »harlour travelling, supposing the light to be ю feet above the level pavement on which he is walking? Draw a figure, and denote the variable distance of the man from the lamp-pint by x, and the distance of the extremity of hit shadow from the pott by y. 7i miles per hour.... | |
 | John Minot Rice, William Woolsey Johnson - Mathematics - 1888 - 222 pages
...extremity of his shadow travelling, supposing the light to be 10 feet above the level pavement on which he is walking? Draw a figure, and denote the variable...of the extremity of his shadow from the post by y. 7J miles per hour. 11. At what rate does the man's shadow (Ex. 10) increase in length? III. Differentials... | |
 | William Woolsey Johnson - Calculus, Integral - 1904 - 452 pages
...extremity of his shadow travelling, supposing the light to be 10 feet above the level pavement on which he is walking ? Draw a figure, and denote the variable...distance of the extremity of his shadow from the post byy. 7^ miles per hour. 14. At what rate does the man's shadow (Ex. 13) increase in length ? III. Rate... | |
| |
J 10. A man whose height is 6 feet walks directly away from a lamppost at the rate of 3 miles an hour. At what rate is the extremity of his shadow travelling, supposing the light to be 10 feet above the level pavement on which he is walking? Draw a figure,... 