Request a call back

A boy holding a plane mirror walks in reverse direction with speed of 0.5 m/s. He is able to see the image of scooter in the mirror which is standing at rest behind him. What is the speed at which the image of scooter approaches the boy?
Asked by Trisha Gupta | 03 Aug, 2021, 03:03: PM
Let v m/s be the speed of scooter .

Distance between scooter and boy at a time t is given as

S = Xo - [ ( v + 0.5 ) × t )  m

where Xo is the distance  between scooter and boy at t = 0

Image distance behind the plane mirror  S = S  = Xo - [ ( v + 0.5 ) × t )  m

speed of image ,  dS'/dt  = - (v +0.5 )  m/s

Hence speed of the image approaching the boy = ( v + 0.5 ) m/s
Answered by Thiyagarajan K | 03 Aug, 2021, 08:10: PM

## Concept Videos

CBSE 10 - Physics
Asked by agankitgupta938 | 18 Apr, 2024, 04:29: PM
CBSE 10 - Physics
Asked by 0 0 | 19 Oct, 2023, 03:51: PM
CBSE 10 - Physics
Asked by gurcharansingh37306 | 10 Sep, 2023, 12:53: PM
CBSE 10 - Physics
Asked by anuskakuhu | 21 Mar, 2023, 11:50: AM
CBSE 10 - Physics
Asked by vpitliya42 | 21 Nov, 2022, 01:21: PM
CBSE 10 - Physics
Asked by priyankakiran2017 | 21 Jun, 2022, 08:44: PM