A straight rod of length L extends from x = a to x=L+a. The gravitational force is exerts on a point mass ‘m’ at x=0, if the mass per unit length of the rod is A+B , is given by:

a. |
Gm |
b. |
Gm |

c. |
Gm |
d. |
Gm |

A straight rod of length L extends from x = a to x=L+a. The gravitational force is exerts on a point mass ‘m’ at x=0, if the mass per unit length of the rod is A+B , is given by:

a. |
Gm |
b. |
Gm |

c. |
Gm |
d. |
Gm |

1 Answer

127 votes

dm = (A+Bx^{2})dx

dF =

=F = (A+B )dx

= GM

=GM

127 votes

127