If rain is falling in the opposite direction of the movement of a pedestrain, he has to hold his umbrella_________________?

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The weight of a body is due to____________________?

A. centripetal force of earth B. gravitational pull exerted by the earth C. forces experienced by body in atmos-phere D. force of attraction experienced by par-ticles E. gravitational force of attraction towards the centre of the earth...

Which one of the following statements is not correct_________________?

A. the tangent of the angle of friction is equal to coefficient of friction B. the angle of repose is equal to angle of friction C. the tangent of the angle of repose is equal to coefficient of friction D. the sine of the angle of repose is equal to coefficient to friction E. none … Which one of the following statements is not correct_________________?Read More...

The C.G. of a right circular solid cone of height h lies at the following distance from the base_____________?

A. h/2 B. J/3 C. h/6 D. h/4 E. 3/i/5...

Frictional force encountered after commencement of motion is called________________?

A. post friction B. limiting friction C. kinematic friction D. frictional resistance E. dynamic friction...

A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if______________?

A. the floor is smooth, the wall is rough B. the floor is rough, the wall is smooth C. the floor and wall both are smooth surfaces D. the floor and wall both are rough sur-faces E. will be in equilibrium under all condi-tions...