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Free Online Mock Physics Multiple Choice Test on Threedimensions Motion
Sub Category : Threedimensions Motion Test : 19 Time Left :
1) A body is projected at an angle theeta to the horizontal with kinetic energy K. The potential energy at the highest point of trajectory is (1) K cospower2theeta (2) 2K (3) K sinpower2theeta (4) K/2
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2) What will be the maximum speed of a car on a road turn of radius 200m. If the coefficient of friction between tyre and the road is 0.4 (g = 9.8m/spower2)(1) 282mspower-1 (2) 200 mspower-1 (3) 28 mspower-1 (4) 400 mspower-1
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3) A body is released from height H along an inclined plane. For what minimum height, the body will complete revolution in the vertical circle of radius R R H(1) 6.0 R (2) 4.0 R (3) 2.5 R (4) 2.0 R
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4) A frictionless track ABCDE ends in a circular loop of radius R. A body slides along the track from point A which is at a height of 5.0 m. Maximum value of R for the body to successfully complete the circle is A B C (1) 5.0 m (2) 2.5 m (3) 2 m (4) 0.5 m
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5)The work done in providing certain velocity v to be body is W. what extra work ought to be done to double the velocity of the body?
(1) W (2) 2W (3) 3W (4) 4W
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