ap physics 1 homework horizontal forces

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AP Physics 1 Practice Test 10: Dynamics

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1. What force best enables a car to gain speed as it drives on a horizontal road?

The sign in the elevator above is suspended by two cables. If the elevator is moving upward at a constant speed, select two of the following statements that are true.

Questions 3-4 refer to the following information.

3. The blocks in the diagram above are sliding to the right on a surface with friction. Compared to the block on the left, the stacked blocks on the right have twice the total mass and are moving at twice the initial speed. How does the magnitude of the acceleration of the stacked blocks compare with the first block?

4. The block will skid a certain distance before coming to rest. Find the ratio between the skid distance of the stacked blocks and the skid distance of the single block.

A force sensor interfaced with a computer pulls horizontally on a 2.0-kg box that is initially at rest on a horizontal surface. The box then breaks free and slides along the surface. The graph above shows how the measured force varies with time. Determine the value for the coefficient of static friction.

A rope accelerates a 20.0-kg block up a 30° ramp at a rate of 2.0 m/s/s. The kinetic friction coefficient between the block and the ramp is 0.18. Determine the value of the tension in the rope.

Questions 7-8 refer to the following information.

7. The diagram above shows two side-by-side blocks of dry ice that are initially resting on a surface with negligible friction. If a hand pushes on the 4-kg, dry-ice block with a steady, 18 N of force, determine the magnitude of the acceleration of the 2-kg block.

8. Determine the value of the force that the 2-kg block pushes on the 4-kg block with.

The box in the diagram above is initially moving to the right with a velocity of 5.0 m/s. Determine the magnitude of the acceleration of the box.

Questions 10-11 refer to the following information.

In the diagram above, the table and pulley are frictionless, and the pulley mass and rope mass are negligible. A rope pulls the 5.0-kg block to the right, accelerating it at a rate of 3.0 m/s/s.

10. Determine the value of the tension T 2 in the string supporting the 1.0-kg hanging mass.

11. Determine the value of the tension T 1 in the string pulling the 5.0-kg block to the right.

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Study guides for every class, that actually explain what's on your next test, horizontal force, from class:.

A horizontal force refers to any external push or pull applied parallel to a surface. It can cause an object initially at rest on a surface with nonzero coefficients of static or kinetic friction to start moving or continue moving at constant speed, respectively.

Related terms

Net force : The overall force acting on an object, obtained by adding up all individual forces acting on it.

Applied force : A force exerted on an object by a person or another object.

A state in which all forces acting on an object cancel each other out, resulting in no net force and thus no acceleration.

" Horizontal Force " also found in:

Practice questions ( 2 ).

• A box with a weight of 100 N is at rest on a rough surface. µk = 0.2 and µs = 0.4. How much horizontal force will move the box?
• A 2 kg box rests on a horizontal surface, and a horizontal force of 10 N is applied to it. If the box starts from rest and moves a distance of 4 meters, what is the final velocity of the box?

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Question: = AP Physics 1 2019 - 2020 : @ A horizontal force of 350 N is exerted on a 2.0-kg ball as it rotates (at arm's length) uniformly in a horizontal circle of radius 0.90 m. Part A Calculate the speed of the ball. Express your answer to two significant figures and include the appropriate units. Value Units Submit Request Answer

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AP Physics 1: Unit 2 Practice Test — Dynamics

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The $9\ kg$ block shown below is at rest.

The size of angle $θ$ is,

Two blocks are at rest over a rough surface whose coefficient of friction $μ_s$ is $0.3$.

The minimum force $F$ needed to set the system of blocks in motion is,

Calculate the average force acting on a block of mass $6.2\ kg$ if it accelerates from rest to $28\ m/s$ in $5.2 \ s$.

A ball of mass $2\ kg$ is initially at rest at the top of a smooth spherical surface of radius $5\ cm$. it is gently pushed so that it starts moving. after rolling through an angle $θ$ it loses contact with the surface..

What is the contact force when the ball loses contact with the surface?

An object of mass $2\ kg$ starts sliding on a rough incline. the coefficient of kinetic friction between the mass and the incline is $0.22$. the incline is $10\ m$ long. how much less time does the object take to reach the bottom of the incline if there is no friction (take the angle of the incline with the horizontal as $30°$).

$A$ variable force $F$ acts on an object according to time $T$, as shown below.

The velocity of the object,

(choose two correct answers.), look at the below spring-mass system. the springs are identical in length and nature..

What is the net acceleration of the mass when it is displaced slightly from the rest position by $x$?

Sally needs to verify the statements given by nancy regarding the below graph. which of the options should sally mark as correct.

Choose two correct answers:

What is the apparent weight of a block of mass $m$, going up in an elevator with an acceleration $a$, questions 10, 11 and 12 are based on the below information., two blocks, kept on a smooth incline plane, are connected by a massless string going over a pulley, as shown below..

If the two blocks are at rest, then which of the below relations must be correct?

If the actual $θ = 20°$, then what will be the acceleration of the lighter block, why does the pulley stay in the same place.

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