4000 Nm 1 m 67 N 2000 N m 15 m 4000 N 200 N m 15 m 3933 N a

4000 N/m 1 m 67 N 2000 N m 1.5 m 4000 N 200 N m 1.5 m 3933 N (a) (b) 4000 N/m AD 1 m. 2000 N m

Solution

The huge difference is not so huge. It is liking huge only in figure but in actual at point C Moment is 67*1.5 = 100.5 Nm that is positive and going to upward while moment ar Point C of 200 Nm is in anticlocwise direction. So, Taken as negitive and hence it is goin downward.

So, At Point C Moments will be = -2000 + 100.5 - 200 = -2099.5 Nm

From this point, moment will be again positive of 67*1.5 = 100.5 Nm value

So, at Point D it is again like to be = -2099.5 + 100.5 ~ -2000 Nm

And it can be seen in figure also.

Hope you are clear that big difference seems only in figure not in actual.