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10 Nov 2019

A small mass m slides with negligible friction down an inclineat an angle of 25.76° with respect to the horizontal. It then dropsdown to a horizontal surface and bounces elastically back up asshown.

The picture is to scale. It shows the position of the mass atequal time intervals starting from rest at V. The height of themass at P is the same as at U.

Answer Choices: G-Greater than, L-Less Than, E-Equal to

(a) The speed change between V and X is ____ between X andT.

(b) The velocity of m at U is ____ that at P.

(c) The size of the total force on m at R is ____ at S.

(d) The speed of m at S is _____ that at Q.

(e) The size of the total force on m at Q is _____ at X.

(f) The mechanical energy of m at P is _____ that at Q.

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Hubert Koch
Hubert KochLv2
19 Jul 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A 5.00-kg package slides 2.80 m down a long ramp that is inclined at   below the horizontal. The coefficient of kinetic friction between the package and the ramp is μk=0.310μk=0.310 .

Calculate (a) the work done on the package by friction

(b) the work done on the package by gravity

(c) the work done on the package by the normal force

(d) the total work done on the package.

(e) If the package has a speed of 2.20 m/s at the top of the ramp, what is its speed after it has slid 2.80 m down the ramp?

1. A block is placed on a plane whose angle of inclination is 30˚. The coefficients of static and kinetic friction for the block on the inclined plane are both 0.2. The block
(A) remains stationary on the inclined plane.
(B) accelerates down the inclined plane.
(C) travels down the inclined plane at a constant velocity.
(D) travels up the inclined plane at a constant velocity.
(E) accelerates up the inclined plane.

2. An object with a mass of 5.5 kg is allowed to slide from rest down an inclined plane. The plane makes an angle of 30˚ with the horizontal and is 72 m long. The coefficient of friction between the plane and the object is 0.35. The speed of the object at the bottom of the plane is?

3. A 5-kg object slides down a frictionless surface inclined at an angle of 30˚ from the horizontal. The total distance moved by the object along the plane is 10 meters. The work done on the object by the normal force of the surface is?

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compresses it a distance x=5.0 cm. The initial speed v of the block was..?



5. The graph shows how the position of a particle depends on time. Which choice is closest to the instantaneous speed of the particle at t = 3s?
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(D) 1.50 m/s
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6. Calculate the work done by a force, F = 2x i, along the
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