The rear view mirror of a …
The rear view mirror of a car is plane mirror. A driver is reversing his car at a speed of 2m /s. The driver sees in his rear view mirror, the image of a truck parked behind the car. The speed at which the image of a truck appears to approach the driver will be
Posted by Savitoj Kaur 2 months, 2 weeks ago
- 1 answers
As we know, the distance of a object from s plane mirror is equal to the distance of image formed behind mirror. therefore , the truck is at the distance 'D' from the car and the image of truck that the car driver will see will appear 2×D . So , Using: Speed = Distance / Time 2 m/s = 2×D/ Time when we move the 2 to LHS. 2×2 m/s= D/Time Final answer will be 4 m/s . Hope it helps!!
A wire of resistance 2 has been connected to a source of 50V as it's two ends .. what is the current flowing through the wires
Posted by Anniska Pradhan 3 days, 7 hours ago
- 3 answers