Relate 36 kmh with ms.
10 m/s
10 km/hr
20 m/s
25 m/s
36 kmh = 36 × 100060 × 60 = 36036 = 10 ms
36 kmhr =___ ms
A plane mirror and an object approach each other with speeds of 5m/s and 10 m/s respectively. The speed of the image will be