Here is how to solve this. Decide on a direction for each vector. Use your scientific calculator to do a polar-to-rectangular conversion - i.e., separate each vector in horizontal and vertical components. (Check your calculator's manual on how to carry out a polar-to-rectangular conversion.) Add the vectors by components. Finally, convert back to polar (rectangular-to-polar conversion, on your scientific calculator).
200 + n = 100 + 200200 + n = 300n = 300 - 200n = 100
F = M AM = F/A = 200/5 = 40 kg
One scale is reading 200N and the other is reading 400N.
400 N 400 N / 10cm2 = 2000 N / 50cm2
A force of 200*sqrt(2) = 282.8427N (to 4 dp) acting at 45 degrees to the two original forces.
The net force is 200N to the left (400N - 200N = 200N).
The force needed to lift a weight of 200N would be 200N. This is because the force needed to lift an object against gravity is equal to the weight of the object itself.
200N (newtons)
arc tan -1.6 ≈ -57.99 + 180n degrees ≈ -1.01 + nπ radians ≈ -64.44 + 200n gradians.
200N
200N
On earth, 200N is 20.4kg
On earth, 200N is 20.4kg
According to Newton's third law of motion, the wall exerts an equal and opposite force of 200N back on you. This is known as the reaction force.
The support force acting on the girl is 200 N. This support force is equal in magnitude and opposite in direction to the gravitational force exerted by the girl's weight.
The work done is calculated as force multiplied by distance, which in this case is 200N x 0.5m = 100 Joules.