Question

Question 4) Solve the numerical problems.

1) A force of 200 N acts on a rigid body such that the perpendicular distance between the

force and the turning point is 50 cm. Calculate the moment of force

2) Calculate the force applied on a body producing a moment of force of 16 N m such that

the perpendicular distance between the point of application of force and the turning point is

80 cm.

3) A 40 kg boy sits 1.2 m from the fulcrum of a see- saw. Where should another boy of 30 kg

sit on the other side in order to balance it?

4) A tip of a drawing pin has an area of 0.01 mm2

, find the pressure exerted by it if a force of

20 N is applied by it.

5) A motorcycle weighs 1200 N. If the pressure exerted by one of its tyres is 120 Pa, then

find the area of the tyre in contact with the road.​

Answer 1

Answer:

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