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 qd3v9) w/bcwm0 px u-ucan NOT do which of the following:

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 ad,a,u mn7hgr-xs-d- a svantage for the pulley system shown to the rig-srs ha a7u ndg--,x,mht?

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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 obi+dx4 8(x9hye t wc,sf 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 efficiency of this comeywtx8 h+(94bs xic,dpound 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 shown, a force of 150 N appll8m*. *xwaxvhz dz6d(ied parallel to the incline’s surface is needed to pull thedwx*( h8*.dzvx6am z l object of mass M=10 kg along the entire length of the incline’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 p36k6yyk)qdor g1wqx7e f+jj)ue op 4)lane shown, which one of the following choices best represents the value of the incline’s ideal mechanical advant6r)keyj 3o qk uj)x4qdew 7y +pg1o)6fage?

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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 along the x 69jz-prcdox2; jk0b9an0rc e- axis with a velocity of +4.0 m/s. A net hop 6jdjc;neo abz99rx c20-0rkrizontal 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 2.0 kg moves along the +x- axis with a kin zl p0+lfg+f/xetic energy of 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 deliv0f/lgzp l++ fxered 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 surface,an931vt1 ( 9 fnqtcpxy)o7hi we(i6sb two bodies make ahead-on collision and stick together. Body 1 has a mass1nf) phs(i9 aoyb(qwt e3c6i1tn 7 x9v 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 horizo4qi2uh i h68xxwjv ,f+ntal surface, two bodies make ahead-on collision and stick together. Body 1 has a mass of 3.5 kg and initially mov6ivj fuw8,x+2h x4 qhies 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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