Question

Man A is standing, and facing a plane mirror while man B is running
towards him from behind at a speed of 1 ms. How fast does the image of
man B seem to be running as observed by (a) man A (b) man B?
Mirror
+1 ms
Man A
man B​

Answer 1

Explanation:

19. A load of 100 kg is pulled up by 5 m. Calculate the work done. (g = 9.8 m/s2)