圆周运动常识练习(国外英文资料).docVIP

圆周运动知识训练(国外英文资料) At a, thrust force is pushed at B A., B., II. C., II. D. 8, on the corner of highway pavement, to build high low, turn right when the car, the driver on the left side of the road should be higher than the right angle, pavement and the horizontal plane is theta, a turning radius of R circular sections, to make the speed of V between the wheels and the road to the cross (that is perpendicular to the direction of the friction force is equal to zero, theta) should be equal to............ () A. B. C. D. 9, as shown in the figure, the radius of R around the center axis OO drum rotating at a constant speed, angular velocity Omega, a small mass of small slider m, by keeping relatively static in the inner wall of the barrel and the barrel, for small slider friction and pressure for the number of each size of the bucket? 10, as shown in the figure, a conical pendulum is L long, is tied to the quality of m ball, when the rope and the vertical direction into theta, what is the size of wire tension? What is the period of a conical pendulum? Comprehensive training 1, when particles do uniform circular motion, the following statement is correct.................................... () The larger the A. line speed is, the smaller the cycle will be, and the larger the B. angular velocity is, the smaller the cycle will be The smaller the C. speed is, the smaller the cycle is, and the larger the D. radius is, the smaller the cycle will be 2, as shown in the diagram, when the car passes at the apex of the semicircle arch bridge at speed V, the correct statement about the force of the car is that.................................... () A. cars are subject to gravity, support and centripetal force B. vehicles are subjected to gravity, support, traction, friction, and centripetal force C. the centripetal force of a car is gravity The combined forces of gravity and support in D. cars are centripetal force 3, the quality of block m, along the radius of inner wall slip hemisph