Mechanical Advantage - 题库网 (tiku.one)

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1#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

99.10: A simple machine can NOT do which of the followingkxdvgdj k) 6d ()gyjw6)m :1ov:

A. have a mechanical advantage greater than 1.

B. change the direction of the force.

C. move the resistance a greater distance than the applied force.

D. increase the energy put into it.

E. produce a force on the resistance which is greater than the applied force.

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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

08.13: What is the ideal mechanical advd)h54 -qpwly oantage for the pulley system shown to the4)d-ho y 5qwpl right?

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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

09.39: For the compound machine cowxx1jh.+u (m h1t2nskmprised of the inclined plane and pulley shown, a 75N force is required to slide a box with mass M=10 kg up the incline at a constant speed. What is the effic21xnxmh 1wkt. uh+( sjiency of this compound machine?

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4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

11.36: For the inclined plane show,fhqw g5c-ri7n, a force of 150 N applied parallel to the incline’s surface is needed to pull the object of mass M=10 kg along the entire length of the inclinq wfh,r5 -c7gie’s surface at a constant speed. What is the actual mechanical advantage (AMA) for this scenario?

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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

16.13: For the inclined plane shown, 8b kf9hdm+scl,x,w 4xwhich one of the following choices best represents the value of tswx8x m9fh 4 dbl,ck,+he incline’s ideal mechanical advantage?

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6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

03.45: A point-like object of majr 6zep;c(i k4x) n7pfss 2.0 kg moves along the x- axis with a velocity of +4.0 knz4pe)x(r fjp c76; im/s. A net horizontal force acting along the x-axis is applied to the object with the force-time profile shown. What is the total work that was done by the force?

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7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

06.17: A point-like object of mass 2.0naq4t y8q:4xq h :q2xo0ky dv- kg moves along the +x- axis with a kinetic energy ofyqq 484:qqtdyh okxxa:0-n2 v 16.0 J. A net horizontal force acting along the x-axis is applied to the object with the force- position profile shown. What is the total impulse delivered by the force (units in kg m/s).

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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

15.27: On a fricti yhpplw 8 8(,g*zj.n1w; firwwonless horizontal surface, two bodies make ahead-on collision and stick together. Body 1 has a mass of 3.5 kg and initially moves to the right with speed 7.0 m/s. Body py1zg;88l *jfp(w.h r i, nwww2 initially is at rest. A graph of the force exerted onto Body 2 from Body 1 during the collision is shown.
What is the mass of Body 2?

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9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

15.28: On a frictionlessz 0s8)+mvhvg v horizontal surface, two bodies make ahead-on collision and stick together. Body 1 has a mass of 3.5 kg and initially moves to the right with speed 7.0 m/s. Body 2 initially is at rest.v) gs0 v+m8vhz A graph of the force exerted onto Body 2 from Body 1 during the collision is shown.
How much kinetic energy was transformed to other kinds of energy from the collision?

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