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If the forces are unbalanced, the resultant force is zero.

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Important Questions on Statics

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Mathematics>Statics and Dynamics>Statics>Resultant and Component
A person of weight W jumps to ground with his legs fixed and comes to rest with an upward acceleration of 3 g. (g is acceleration due to gravity). The force exerted by him during landing is: 
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Mathematics>Statics and Dynamics>Statics>Resultant and Component

A horizontal force ‘F’ is applied to keep the block stationary on a frictionless inclined plane. Find the angle of incline, for which the applied force is equal to the weight of body: 

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Mathematics>Statics and Dynamics>Statics>Resultant and Component
A packet of weight W was allowed to fall freely in a water tank with acceleration a<g. The magnitude of resistive force offered by water is :
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Mathematics>Statics and Dynamics>Statics>Resultant and Component
A cork is immersed in a jar of water and released. How the cork will move if the jar is assumed to be kept in a satellite orbiting earth: 
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Mathematics>Statics and Dynamics>Statics>Resultant and Component
A wooden plank of length L rests on a frictionless floor. A boy of mass M now runs over the plank starting from its one end. If one wooden plank is M5, the distance covered by the boy relative to the ground will be:
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Mathematics>Statics and Dynamics>Statics>Resultant and Component

Define a contact force.

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Mathematics>Statics and Dynamics>Statics>Resultant and Component
Forces applied on an object in the same direction?
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Mathematics>Statics and Dynamics>Statics>Resultant and Component

What causes acceleration?

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Mathematics>Statics and Dynamics>Statics>Resultant and Component

Define force.

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Mathematics>Statics and Dynamics>Statics>Resultant and Component
Balanced forces _____.
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Mathematics>Statics and Dynamics>Statics>Resultant and Component
Explain any three effects that can be produced by force with examples.
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Mathematics>Statics and Dynamics>Statics>Resultant and Component

Discuss two effects a force can produce.

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Mathematics>Statics and Dynamics>Statics>Resultant and Component

Give an example of non-contact force.

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Mathematics>Statics and Dynamics>Statics>Resultant and Component
If the two forces act in the opposite directions on an object, the net force acting on it is?
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Mathematics>Statics and Dynamics>Statics>Resultant and Component

What is a resultant force?

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Mathematics>Statics and Dynamics>Statics>Resultant and Component
Force can be used?
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Mathematics>Statics and Dynamics>Statics>Resultant and Component
When you apply a force on a body, it must move.
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Mathematics>Statics and Dynamics>Statics>Resultant and Component
Explain any three effects that can be produced by force with examples. 
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Mathematics>Statics and Dynamics>Statics>Resultant and Component
A moving body will remain  ______________ if balanced forces acts on it.
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Mathematics>Statics and Dynamics>Statics>Resultant and Component
A body moves with a constant speed of 5 m s-1. This shows that balanced forces are acting on the body.