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...
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...
A. mechanical advantage is greater than velocity ratio B. mechanical advantage is equal to velocity ratio C. mechanical advantage is less than velocity ratio D. mechanical advantage is unity E. none of the above...
A. proportional to normal load between the surfaces B. dependent on the materials of contact surface C. proportional to velocity of sliding D. independent of the area of contact surfaces E. none of the above is wrong statement...
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