Question

Q22. A body moves along x axis from 0 to 5m under the influence of force give
by F = 3x2 + 4x - 5 in Newton. Calculate work done.
110 J
(ii) 120 J
(iv) 150 J
(iii) 130 J​

Answer 1

III} 130 joule is the right answer because

3x2 + 4x - 5

6 + 4x - 5

x = 10

6+4x10 = 40 x 6 = 240

240 divided by 6

40 + 120

160-1

the answer is 150