A convex, rearview mirror of focal length 20cm, is fitted in a car. A second car 2 m broad and 1.6m high is 6m away from the first car and overtakes the first car at a relative speed of `15 ms^(-1)`, then the speed of the first car is

A motor car is fitted with a convex driving mirror of focal length 20 cm. A second motor car 2 m board and 1.6 m high is 6 m away from the first car. If the second car is overtaking at a relative speed of 14ms^-1 , how fast will the image be moving and in what direction?

A car is fitted with a convex side-view mirror of focal length 20 cm. A second car 2.8 m behind the first car is overtaking the first car at relative speed 15 m*s^(-1) . The speed of the image of the second car as seen in the mirror of the first one is

A car is fitted with a convex side-view mirror of focal length 20 cm. A second car 2.8m behind the first car is overtaking the first car at a relative speed of 15 m/s . The speed of the image of the second car as seen in the mrror of the first one is:

A car is fitted with a convex side-view mirror of focal length 20 cm. A second car 2.8m behind the first car is overtaking the first car at a relative speed of 15 m/s . The speed of the image of the second car as seen in the mrror of the first one is:

A car is fitted with a convex side-view mirror of focal length 20 cm. A second car 2.8m behind the first car is overtaking the first car at a relative speed of 15 m/s . The speed of the image of the second car as seen in the mrror of the first one is: