Answer:
Speed of Pulley B and C: 300 r.p.m
Speed of Pulley D= 60 r.pm
Step-by-step explanation:
To find the speed of Pulley B and C,
you first have to Multiply 2 (which is A) by 600, the speed that A is going at.
600 x 2= 1,200 correct?
So now, you have
1,200 = 4B and here you divide. Which gives you 300!
Pretty simple :)
Now for Pulley D, you use the 300 still. So the equation would look like this:
(1) (300) - Which is C, since C and B are the same speed it doesn't matter- just keep the 300.
(1) (300) = 5 (D)
Now you have to divide 300 by 5, and that answer is 60!
This explanation should be in your actual lesson so just read that, and apply it to this! I apologize if I made no sense whatsoever, I'm terrible at explaining but I hope I helped!