Question

a 10 kg block is gently put on a moving plank having velocity of 1 metre per second in due time block start moving with plank at 1 metre per second what will be the work done by external force which maintain the constant speed of the plank where Mu is equal to 2.4 and G is equal to 10 metre per second square ​

Answer 1

Answer:

50N (taking g = 10m/s^2)