A car when passes through a convex bridge exerts a force on it which is equal to

English

Gujarati

Hindi

3-2.Motion in Plane

easy

A car when passes through a convex bridge exerts a force on it which is equal to

A$Mg + \frac{{M{v^2}}}{r}$

B$\frac{{M{v^2}}}{r}$

C$Mg$

DNone of these

Solution

(d)$F = mg – \frac{{m{v^2}}}{r}$

Standard 11

Physics

Share

Similar Questions

A stone tied to a string is rotated in a circle. If the string is cut, the stone flies away from the circle because

easy

A particle moves with constant angular velocity in circular path of certain radius and is acted upon by a certain centripetal force $F$. If the angular velocity is doubled, keeping radius the same, the new force will be

easy

A string breaks if its tension exceeds $10$ newtons. A stone of mass $250\, gm$ tied to this string of length $10 \,cm$ is rotated in a horizontal circle. The maximum angular velocity of rotation can be ………. $rad/s$

medium

A motorcycle is going on an overbridge of radius $R$. The driver maintains a constant speed. As the motorcycle is ascending on the overbridge, the normal forces on it is

easy

If the radius of curvature of the path of two particles of same mass are in the ratio $3:4,$ then in order to have constant centripetal force, their velocities will be in the ratio of:

hard

(JEE MAIN-2024)