The image shows that wheelbarrow with a load in it. The effort is 600N, the load arm is 120cm and the effort arm is 30cm ?

To calculate the weight of the load in the wheelbarrow, we can use the formula for a lever:

Effort x Effort Arm = Load x Load Arm

600N x 30cm = Load x 120cm

18000 Ncm = Load x 120cm

Load = 18000 Ncm / 120cm

Load = 150N

Therefore, the weight of the load in the wheelbarrow is 150N.

The mechanical advantage (MA) of a lever is the ratio of the load arm to the effort arm. In this case, the load arm is 120 cm and the effort arm is 30 cm, so the MA is 120 cm / 30 cm = 4. This means that the effort force is four times less than the load force.

The effort force is 600 N, so the load force is 600 N / 4 = 150 N.

Therefore, the load in the wheelbarrow is 150 N.