Neha and Reha are playing see-saw. Neha is sitting 60cm away from the fulcrum and Reha is sitting 40cm away from the fulcrum. Calculate the effort that Reha should apply to lift Neha. The weight of Neha is 360N.​

Effort = 540 Newton

Explanation:

Given the following data;

Load arm = 60 cm

Effort arm = 40 cm

Load = 360 N

Conversion:

100 cm = 1 meters

40 cm = 40/100 = 0.4 meters

60 cm = 60/100 = 0.6 meters

To calculate the effort that Reha should apply to lift Neha, we would use the expression;

Effort * effort arm = load * load arm

Substituting into the expression, we have;

Effort * 0.4 = 360 * 0.6

Effort * 0.4 = 216

Effort = 216/0.4

Effort = 540 Newton

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asthenosphere and convection