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 following: n)ywm .,.;pmqhas) qrs vf;n/

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 advantagd() vvr,gyf n9cmh h8myeh/n4ej; z3* e for the pulley system shown to the righe,e n cy mzrfjhvh dh*v y9);m(4/ng38t?

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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 comprised of the inclined plane and 6 hhdas2mp2do:e/ +wu pulley shom2o:hws6hpd2/e+u da wn, a 75N force is required to slide a box with mass M=10 kg up the incline at a constant speed. What is the efficiency 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 plw0k psb m5(a/4k h5spqane shown, 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 incline’s surface at a constant speed. What is the actual mecq4 h/0wap5kmbs(5 skphanical 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, which one of the following choices je,. /:hn 4ieub h1yikbest represents th4bjk :yi1h e.nhu,ei /e value of the 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 mass 2.0 kg moves lhgmhi5:75ojc2 /yimu e( f2 ralong the x- axis with a velocity of +4.0 m/s. A net horizontal force acting along the x-axis is appo7ef(2 giumyhhc2j5 / i5mrl:lied 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 of5icpuv e *bhwtf8:( r7 mass 2.0 kg moves along the +x- axis with a kinetic energy of 16.0 J. A net hcw(7ut e 5pb* f:8hivrorizontal 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 frictionless horizontal surc,vbl*.+mspew q ig ((face, two bodies make ahead-on collision and stick together. Body sw+l,(i(*c p mv. bqeg1 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. 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 frictionless horizontal 0:lm1a sz)yj 4+btxpysurface, two bodies make ahead-on collision and stz14) 0pyb +msx:jatylick 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. 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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