If you need to move a heavy object (e.g. a desk or a dresser), what is easier to do: start it sliding or to keep it sliding? Use evidence from your data and graphs to support your answer.

Q: Two blocks each weighing 25 N are connected to the ends of a light string which is passed over a…

A: Solution: given that m1=m2 = 25 kg

Q: In the diagram shown, mass 1 (m1) is 18.79 kg and the coefficients of static and kinetic friction…

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Q: Researchers have measured the acceleration of racing greyhounds as a function of their speed; a…

A: (a)  The average force acting on it during its initial acceleration phase is Favg=ma=32 kg10 ms2=320…

Q: Which of following descriptions COULD be true of an object that is at equilibrium or in balanced…

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Q: of mass 77.7 kg stands on one end of a diving board of mass 26.8 kg, as shown in the diagram.…

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Q: An athlete with a mass of 50.0 kg is doing pushups as shown in the figure below. The value for rW⊥…

A: Given : Mass of athlete (m) = 50.0 kg rW⊥ = 0.95 m rR⊥ = 1.56 m

Q: ager walks d = 2.8 m along a uniform plank supported by the floor at one end and by a I rope at the…

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Q: girl has a 14 kg wagon. If she pushes from behind at an angle of the 30 degrees with a force of 60…

A: girl has a 14 kg wagon. If she pushes from behind at an angle of the 30 degrees with a force of 60…

Q: The figure below shows a bird feeder that weighs 165.3 N. The feeder is supported by a vertical…

A: Consider the FBD’s below.

Q: A steam catapult applies a very large force to supplement the engine thrust of a jet fighter as it…

A: We have a fighter jet of mass m=4040 kg which has to start from rest (initial velocity u=0) and…

Q: difference between statics and dynamics in the field of biomechanic

A: Difference between statics and dynamics in the field of biomechanics and force.

Q: On her way to visit Grandmother, Red Riding Hood sat down to rest and placed her 1.20 kg basket of…

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Q: 20 m Your Answer: 15 m Rough A 15.0 kg stone slides down a snow-covered hill shown in the figure,…

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Q: In an experiment performed on Friction, the following data were obtained: Weight of the block = 358…

A: The coefficient of friction is a one-dimensional quantity that represents the ratio of friction…

Q: Problem 56. Your car is stuck in a mud hole. You are alone but have a long, strong rope. Having…

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Q: The figure below shows a bird feeder that weighs 158.9 N. The feeder is supported by a vertical…

A: Given: Weight of bird feeder = 158.9 N Angle ABC is the right angle triangle. Tension in ropes is…

Q: Consider the two different designs of nutcracker shown in (Figure 1). Suppose that in both cases a…

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Q: A man standing on the ground exerts a horizontal force of 439 N when pushing on his friend standing…

A: Given:                       Weight of friend , M =70 kg                       Weight of skateboard,…

Q: The figure below illustrates the motion of an object on an inclined surface. The angle of…

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Q: A young woman is renovating her kitchen. It is her first day working on it so it is time for…

A: The forces are equal.

Q: In the Atwood's machine shown in the diagram, two masses M and m are suspended from the pulley. What…

A: M>m Let the acceleration is a

Q: A different scaffold that weighs 400 N supports two painters, one 500 N and the other 400 N. The…

A: Let the reading of unknown scale be given as x. And we consider that the system is in equilibrium.

Q: Now the block on the table has friction.  Calculate the frictional force if the block is stationary.…

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Q: oard and you must slide your weighted disk 8m across the floor where it will come to rest on the…

A: Given:- The mass of the disk m =0.8 kg. The initial push of velocity u = 4 m/s.  The disk move…

Q: In the figure below, a cord runs around two massless, frictionless pulleys. A canister with mass m =…

A: As in this case, acceleration is zero. Therefore, lifting force is equal to the weight of object. We…

Q: The image below depicts the Apollo 16 Lunar Module (LM) on the moon's surface. The diagram to the…

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Q: A typical jar that has been tightened to a reasonable degree requires 2.0 N ⋅ m to open. If you grab…

A: Given: Required torque to open the jar (T)= 2 Nm Diameter of the jar lid (d)=7 cm…

Q: Two boxes are connected with a rope as shown in the figure below. The tension in the rope is T, and…

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Q: A certain orthodontist uses a wire brace to align a patient's crooked tooth as in the figure below.…

A: From the figure it can be easily seen that the x-component of the tension cancels out as they are…

Q: A boy sits in a tire that is attached to a rope that passes over a pulley fastened to the ceiling…

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Q: 3.0 kg F 5.0 kg

A: (a) What is the minimum value of F needed to move the two blocks? (b) If the force is 10% greater…

Q: Two muscles in the back of the leg pull upward on the Achilles tendon, as shown in the figure.…

A: The horizontal component of F1 acting in the right direction isF1x = F1 sin(20°) = (200…

Q: between the larger block and the table, but there is friction in between the blocks (coef. of static…

A: It is given in the question that a horizontal force F pushes against a block of mass m and which…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!