An automobile of mass `m` is crossing over a convex upward over bridge with a speed `v` . If the radius of the bridge is `r` the thrusrt on the bridge at the highest point will be.

A car of mass m moving over a convex bridge of radius r .Find the normal reaction acting on car when it is at bighest point the bridge.

A car of mass m moving over a convex bridge of radius r .Find the normal reaction acting on car when it is at bighest point the bridge.

A bike crosses a bridge with a speed of 108km/h. What will be the length of the bridge ,if the bike takes 8 h to cross the bridge?

A person riding a bike crosses a bridge with a speed of 54km/h. What is the length of the bridge ,if he takes 4 min to cross the bridge?

The roadway bridge over a stream is in the form of an are of a circle of radius r. A car is crossing the bridge with a speed v. Prove that the limiting speed of the car with which it can cross the bridge without leaving the ground at the highest point of the bridge is v le sqrt(gr).

I here is a parabolic shaped bridge across the river of width 10 meter.The highest point of the bridge is 4 meter above the level of bank.A car of mass 72kg is crossing the bridge at a constant speed of 5m/s . Find the force (in Newton) exerted on the bridge by car when it is at the highest point P of the bridge. (take g=10m/s^(2))

A car of mass m moving over a concave bridge of radius r .Find the normal reaction acting on car when it is at lowest point the bridge